The warm and moist climate of tropical areas, for example, provides optimum climatic conditions for plant development in ecosystems with the highest biodiversity.
Ecosystems may also house species that are too tiny to perceive with the human eye.
The following are the two key predictions of Island Biogeography Theory: Islands close to a source area will have more species than islands of equal size further away from the source area.
More species will be found on larger islands than on smaller islands located at comparable distances from the source area. Because isolated islands are difficult to reach, the theory predicts that biodiversity will be lower and increase slowly.
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a brilliant scientist has come up with a procedure that blocks sensory receptors in our skin from sending signals to the spinal cord and brainstem, so that people no longer have to feel physical pain. as an evolutionary biologist, why would this procedure be concerning to you? group of answer choices
This process will be important to you as an evolutionary biologist because, while being an unpleasant sensation, pain serves as a helpful adaptation rather than a sickness. In this case, option A is correct.
Movement is restricted and muscle activity is altered by pain to prevent additional damage to the sensory-motor system.
Signals produced by touch receptors in your skin serve as the basis for sensations. They move along sensory receptors, which are made up of bundled fibers connected to spinal cord neurons. The thalamus receives messages after that and transmits them to the remainder of the brain.
After traveling along a sensory neuron, the impulse is received by the spinal cord. The impulse travels across a synapse between a spinal cord nerve cell and a sensory neuron. The impulse enters the brain stem nerve cell solely on a single side of the cord, where it then proceeds to the other.
Complete question:
A brilliant scientist has come up with a procedure that blocks sensory receptors in our skin from sending signals to the spinal cord and brainstem so that people no longer have to feel physical pain. As an evolutionary biologist, why would this procedure be concerning to you? Group of answer choices
A - Although pain is an unpleasant experience, it is a beneficial adaptation rather than a malady.
B - No pain no gain Without pain, women would be more likely have offspring which increases their fitness
C - Pain makes us more vulnerable to harm
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clone mammals were foudn to not walwyas be identical to their parents or siblings. often the clone animals exhibit defcts. what seems to be the reason for the high incidence of abnormailities
Not all clones have the same appearance. Despite the fact that clones have identical genetic makeup, an organism's development is greatly influenced by its environment.
The majority of animal embryos created through reproductive cloning are unable to mature into healthy adults, making it an extremely ineffective procedure. Increased birth weight and a range of abnormalities in crucial organs like the liver, brain, and heart are examples of negative health effects in sheep and other mammals. Premature aging and immune system issues are some additional side effects. The chromosomes of the cloned cell's relative youth is a different possible issue.
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why are notochord more closely related to echinoderms than other invertebrates?
More so than arthropods, chordates are related to echinoderms.
Why do chordates and echinoderms share a closer relationship?Most closely related to in phylum Chordata, which contains many complex organisms like humans, are echinoderms.Their common ancestor most likely had a cephalized nerve system that was bilaterally symmetrical and centered in the head.
Echinoderms vary from other invertebrates for what reason?Regardless of the fact that they may appear to be very different from each other, echinoderms always share two major characteristics that set them apart from all other organisms: a fluid circulatory system and five radial symmetry.
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What structure is being highlighted?
Cilia are the highlighted structure. The stratified, keratinized epithelium that is highlighted is squamous epithelium.
Cilia :-
All mammalian cells have cilia, which are tiny, slender, hair-like structures. They may be solitary or many and are of a primitive character. Cilia are important for movement. They take part in mechanoreception as well. Ciliates are the name for organisms with cilia.
squamous epithelium
Simple squamous epithelium: This kind of epithelium usually lines blood arteries and bodily cavities and controls how much material may enter the underlying tissue. Simple cuboidal epithelium: Kidney tubules and glandular (secreting) tissue frequently contain this form of epithelium.
Your skin's epithelium is a delicate tissue that covers glands and other internal organs. You have squamous cells all over your body. Squamous metaplasia can occasionally develop into cancer.
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ATP is a A) nucleotide: B) lipid: C) carbohydrate D) protein: E) amino acid.
ATP and four GTP molecules are used for every single amino acid integrated into the peptide chain.
Amino acid activation in protein synthesis. Aminoacyl-tRNA synthetase enzymes eat ATP withinside the attachment tRNA to amino acids, forming aminoacyl-tRNA complexes. Aminoacyl transferase binds AMP-amino acid to tRNA. The coupling response proceeds in steps: aa + ATP ⟶ aa-AMP + PP.
Over one hundred ATP molecules are synthesized from the whole oxidation of 1 molecule of fatty acid, and nearly 40 ATP molecules end result from amino acid and pyruvate oxidation. Two ATP molecules are synthesized withinside the cytoplasm through the conversion of glucose molecules to pyruvate.
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Match the descriptions with the appropriate pedigree. Inheritance of a recessive autosomal trait Inheritance of a Inheritance of a X-linked trait Inheritance of a dominant trait recessive, sex-linked trait Pedigree A Pedigree B Pedigree â¬'
the descriptions that match the appropriate pedigree are Pedigree A: sex-linked recessive trait. Pedigree B: autosomal recessive trait. Pedigree C: autosomal dominant trait.
According to the dominant or recessive genes and their location, inheritance patterns refer to all the ways that qualities can be passed down through the generations (somatic or sex chromosomes).
What kinds of inheritance patterns are there?autosomal dominant inheritance distinguishes itself because the dominant allele entirely blocks the expression of the recessive gene, Even though the genotype contains both the dominant and recessive alleles, only the dominant trait will manifest. The dominant phenotype can only be expressed by one dominant allele.The expression of the recessive characteristic distinguishes autosomal recessive inheritance. These alleles must be present in two copies in order to express the recessive phenotype; dominant alleles are not present.Genes on one of the sex chromosomes are known as "sex-linked" inheritance. Genes are typically connected to the X chromosome. Only the chromosome and these genes with their matching alleles will be inherited.therefore,
Pedigree A describe the inheritance of a sex-linked recessive trait.Pedigree B descibe the inheritance of an autosomal recessive trait.Pedigree C describe the inheritance of an autosomal dominant trait.You can learn more about inheritance patterns at
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Will glucose be able to move across a cell membrane by simple diffusion? Why or why not?
Glucose can move across the cell membrane by simple diffusion because it enters the cell bound with its carrier protein.
Cell Transport SystemPassive Transport
Passive transport is a cell transport system that does not use energy, but directly and spontaneously. In passive transport, the substances being transported are nonpolar substances such as glucose, water, and oxygen.
Direct DiffusionDiffusion is the process of moving a substance with a high concentration to a substance with a lower concentration so that the concentrations of the two are balanced.
Assisted DiffusionAssisted diffusion takes place when the transport of glucose from outside into the cell is assisted by protein intermediaries. Assisted diffusion occurs because glucose cannot cross the cell membrane on its own. In order for glucose to pass through the membrane and enter the cell, glucose is bound to its carrier protein.
OsmosisOsmosis is the process of balancing the concentration of water inside and outside the cell.
Active Transport
Ion PumpIf two potassium ions enter the cell, one potassium ion must be forced out of the cell.
EndocytosisEndocytosis is the process of incorporating macromolecular substances into cells by covering them with the plasma membrane.
ExocytosisExocytosis is the process of removing macromolecular substances as a result of metabolism from inside the cell outside the cell.
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a mineral supplement designed to prevent the flu
A change that would remove the source of this error is to: Test a fourth group, in which participants do not receive the mineral supplements.
A scientific method is any of the different approaches used to observe, inquire into, scrutinize, and study a specific object while providing explanations based on the facts, theories, data, or information gleaned from the research activity.
In this instance, the corporation asserted that its mineral supplements could successfully prevent the flu. A scientist, however, refuted this assertion due to a flaw in how the grouping was done.
Testing a fourth group in which none of the participants receives the mineral supplements would be a practical and efficient strategy to eliminate this source of error for this inquiry.
The complete question is:
A company produces and tests a new mineral supplement designed to prevent the flu. The company tests three dosages of the mineral supplement on 300 participants, male and female, between the ages of 25 and 50 over a 6-month period. Each group has 100 randomly assigned participants. The table shows the dosages of the mineral supplement given to each participant in each group and the number of participants that report having a common cold during the 6-month period. The company claims that the mineral supplement can effectively prevent the flu. A scientist disputes the claim, saying an error exists in the setup of the groups for the investigation. Which change to the investigation would remove the source of this error?
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which is a type of protien apex
Grass-Fed whey protein is a type of protein apex that contains only whole intact whey protein concentrate with no amino acid spiking.
Each serving contains 30 grams of grass-fed whey protein concentrate that is low in carbs and contains no trans fats. Grass-fed protein refers to animal products like dairy, whey, and collagen peptides obtained from animals fed their natural diet of grass rather than GMO grains like corn and soy (along with hormones and antibiotics). Upon treatment with H2O2, APEX converts exogenously supplied biotin-phenol to biotin-phenoxyl radicals, which results in the covalent labeling of protein in a radius of 20nm.
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The velocity of blood flow is lowest in capillaries because:
A. The capillaries walls are not thin enough to allow oxygen to exchange with the cells.
B. The capillaries are far from the heart and blood flow slows as the distance from the heart increases.
C. The diastolic blood pressure is too low to deliver blood to the capillaries at a high flow rate.
D. The total cross-sectional area of the capillaries is greater than the total cross-sectional area of the arteries or any other part of the circulatory system.
The velocity of blood flow is lowest in capillaries because: The total cross-sectional area of the capillaries is greater than the total cross-sectional area of the arteries or any other part of the circulatory system. The correct option is D.
Blood flow velocity and total blood vessel cross-sectional area are inversely related. The velocity of flow reduces as the vessels' overall cross-sectional area grows. The capillaries, where blood flow is the slowest, provide time for the exchange of gases and nutrients.
Therefore, "The overall cross-sectional area of the capillaries is greater than the total cross-sectional area of the arteries or any other portion of the circulatory system" is the right response.
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Which form of membrane transport requires the expenditure of energy in the form of ATP? a) passive diffusion b) facilitated diffusion c) ion pumps d) all of the above require the expenditure of energy in the form of ATP e) none of the above require the expediture of energy in the form of ATP
ion pumps form of membrane transport requires the expenditure of energy in the form of ATP
Ion pumps are channels that move ions across an electrochemical gradient from one side of a membrane to the other using the energy from ATP hydrolysis (Harold, 1986; Laüger, 1991). They are selective, much like passive channels, meaning that a pump structure is only designed to allow the passage of a specific ion.
Some compounds are introduced into the cell by ion pumps, whereas others are removed from the cell by ion pumps. They assist in controlling the cell's contents in this way. Ion pumps are also necessary for life since they can be used to control the contents of the entire body. The regular or standard diode pump, the noble diode pump, and the triode pump are the three basic varieties of ion pumps.
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4 chambered hearts are ideal for amphibians and reptiles due to the low metabolic rates of these organisms
This statement is False.4 chambered hearts are not ideal for amphibians and reptiles due to the low metabolic rates of these organisms
We see that the heart's structure gets more functional with an increase in the number of chambers as we proceed from the lower classes of vertebrates to the higher classes.
Fish have hearts with two chambers.
Most reptiles, except crocodiles, and amphibians have three chambers in their hearts.
Mammals and birds both have four heart chambers.
Except for crocodiles, amphibians and reptiles have a three-chambered heart with a single ventricle. This is because these animals need less oxygen to be given to the body per liter of blood since they have slower metabolic rates.
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(a) Name two processes that remove carbon from the atmosphere: _____ (b) Name two processes that add carbon to the atmosphere: _____
The two processes that remove carbon dioxide from the atmosphere are photosynthesis and absorption. Respiration and volcanism, or the eruption of molten rock, are the two processes that provide carbon to the atmosphere.
carbon is removed from the atmosphere through photosynthesis and replaced with O2. O2 is removed from the atmosphere during respiration and replaced with carbon . These processes, however, are not in equilibrium. Not every organic substance oxidizes. Photosynthesis and metabolism are the two fundamental processes that take place during the natural carbon cycle. Plants consume carbon dioxide during photosynthesis to create oxygen, and they also make carbon dioxide during metabolism.
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carcinogens are not a.agents that induce transformation. b.viruses such as epstein-barr virus. c.agents that induce dna mutations. d.energy such as ionizing radiation. e.chemicals such as formaldehyde.
Carcinogens are not a. agents that induce transformation.
Carcinogens are any substance that causes cancer. Carcinogen may include substances like radionuclide, or radiation which is directly involved in promotion of cancer or facilitating it's propagation. Carcinogens may occurs due to genomic instability, or disruption of cellular metabolic processes.
Transformation is considered as the process in genetic engineering by which foreign genetic material is taken up by a cell. They leads to the change in a stable genetic material. In general the transformed bacteria is used as host cells for making multiple copies of the DNA in cloning procedures.
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describes a diploid organism or cell that has the same allele for both a maternal and paternal gene.
When two paired chromosomes harbor the same or identical alleles for a given characteristic at nearby loci, this condition is referred to as homologous (i.e. homologous chromosomes)a diploid organism or cell that has the same allele for both a maternal and paternal gene.
The term "homozygous" refers to the presence of the same or identical alleles for a given trait at related loci on paired chromosomes (i.e. homologous chromosomes). An entity with two sets of chromosomes is said to be diploid. Both sets are inherited; one set is from the mother and the other from the father. Based on their locations, each maternal chromosome can be matched with a corresponding paternal chromosome. Homozygous occurs when the same alleles are present at the loci in the corresponding chromosomes. It indicates that the same trait is coded for by both alleles.
A "homozygous" organism is one that carries two copies of either a pair of dominant alleles (such as AA) or a pair of recessive alleles for a given trait. genuinely reproducing organisms
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kendra only classifies an animal as a fish if it swims, lays eggs, and has gills. which model of categorization is this? group of answer choices necessary and sufficient conditions none of these options are correct. exemplar theory prototype theory
prototype theory. Kendra only classifies an animal as a fish if it swims, lays eggs, and has gills. necessary & sufficient conditions.
In cognitive science, particularly in psychology and cognitive linguistics, the prototype theory is a categorization theory that holds that there are various degrees of belonging to a conceptual category and that some members are more central than others. It was created by psychologist Eleanor Rosch, and the theory of categorization employed it for the first time in 1971. It has been referred to as a "Copernican revolution" because it deviates from conventional Aristotelian categories. Supporters of the structural semantics paradigm, such as linguist Eugenio Coseriu, have debated others who continue to hold to the traditional idea of categories.
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I need help with this question could someone please help?
Answer:
I would say false since the sugar in RNA is called ribose
Explanation:
best of luck
Answer: FALSE
Explanation: It should be Ribose sugars
Unlike DNA, RNA is usually single-stranded. Additionally, RNA contains RIBOSE SUGARS rather than deoxyribose sugars.
contaminated or soiled materials such as gloves, drapes, and sponges are potential sources to spread infectious agents. what should you do with all used or contaminated materials?
Contaminated or soiled materials such as gloves, drapes, and sponges are potential sources to spread infectious agents. Dispose of them in appropriately labelled containers.
How should we treat contaminated material?
Treatment options for hazardous waste include chemical, thermal, biological, and physical processes. Ion exchange, precipitation, oxidation, reduction, and neutralisation are examples of chemical processes. High-temperature incineration is one thermal approach that can both cleanse and destroy some organic wastes. Waste that is either solid, liquid, or sludge is burned using specialised thermal equipment. These comprise the liquid-injection incinerator, rotary kiln, fluidized-bed incinerator, and multiple-hearth furnace. The possibility of air pollution is one issue brought on by the combustion of hazardous trash.
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Innermost membrane around the developing embryo
Around the developing embryo there are two innermost membrane, the fetal membrane surrounds the fetus during pregnancy and is a thin tissue composed of two layers are, chorion and the amnion.
What is chorion and amnion?Amnion is the innermost layer that surrounds the developing embryo, whereas chorion is the outermost layer around the developing embryo.The amnion, yolk sac, chorion, and allantois are the membranes of the embryo, and each of these membranes begins as a thin tissue sheet enclosing a hollow filled with fluid. The amnion and yolk sac are where the first membranes are formed.Gastrulation is a complex process involving the embryo reorganizing itself to generate the three embryonic germ layers, endoderm, mesoderm, and ectoderm.Learn more about developing of embryo here: brainly.com/question/1191674
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D47. In eukaryotes, RNA polymerase Il transcribes: lose lose 020 tRNA genes small rRNA genes Close large rRNA genes 020 protein-coding genes been a none of the above D48. se Histone deacetylase is recruited by a protein that binds to: ise 20 a promoter an enhancer ose a silencer histones 20 none of the above D49. In the blue/white selection assay, which of these is coded by the cellular DNA? use beta-galactosidase ose T7 phage RNA polymerase ampicillin 20 all of the above none of the above D50. Which of the following is necessary for the analysis of STR loci in forensic DNA profiling? restriction enzymes restriction sites amelogenin been primers none of the above
D47. Answer: D. RNA polymerase II transcribes protein-coding genes.
In eukaryotes, RNA polymerase Il transcribes protein-coding genes. RNA polymerase Il is the main enzyme involved in the transcription of nuclear genes that encode proteins.
D48. Answer: D. Histone deacetylase is recruited by a protein that binds to histones, which are proteins that package and order DNA molecules in the nucleus.
D49. Answer: A. In the blue/white selection assay, the cellular DNA codes for the enzyme beta-galactosidase, which catalyzes the hydrolysis of lactose into glucose and galactose.
D50. Answer: D. Primers are necessary for the analysis of STR loci in forensic DNA profiling. Primers are short sequences of nucleotides that are complementary to the target sequence and are used in PCR to amplify the target DNA.
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Label the bony structures of the shoulder and upper limb. Radius Scapula Surgical neck Head of humerus Greater tubercle Humerus Acromion process of scapula Glenoid cavity of scapula Ulna Reset Zoom
The composition of bones The shoulder and upper limb's bony structures should be identified. Radius Scapula Operative neck the humerus's head enlarged tubercle Humerus Scapular acromion process scapular glenoid cavity Ulna Zoom reset
It creates the outer layer of bone and accounts for around 80% of mature bone mass. The remaining 20% of bone is made up of trabecular (or spongy) bone, which is made up of a network of rod-like structures called trabeculae. In other words, "Radiographic examination revealed opacities consistent with bony structure in the auricles of the ears, with the right more apparent than the left." It is lighter, less thick, and more flexible than compact bone.
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Check the labelled parts below:
what is 'rna processing' in the context of gene expression, and do both prokaryotes and eukaryotes do it?
Answer:
RNA processing is the term collectively used to describe the sequence of events through which the primary transcript from a gene acquires its mature form. Very soon after synthesis by RNA polymerase II begins, transcripts from nuclear protein-coding genes acquire a 5′ cap structure
TRUE/FALSE. screech owls sometimes locate and eat blind snakes. occasionally, one is brought back to the nest and escapes. however, the blind snake does not leave the nest, rather it burrows down into a protected area below the nest, and the owl does not eat the snake. which of the statements reflects the relationship between the two organisms? please choose the correct answer from the following choices, and then select the submit answer button. answer choices this is mutualism because the snake eats larva of parasites that could infect the nestlings, and the bird will also bring food for the snake. this is predation because normally the snake would be eaten. this is commensalism because the snake eats the larva of parasites that could infect the nestlings. this is commensalism because the snake will eat only one of the nestlings before all the young leave the nest.
The given statement reflects the relationship between the two organisms
"this is commensalism because the snake eats the larva of parasites that could infect the nestlings".
What are Screech owls?
Screech owls are small, nocturnal birds of prey found across North and Central America. They are about 6-10 inches in length and have a distinctive, piercing call. They have mottled gray or brown feathers and yellow eyes. Screech owls hunt by perching in a tree and waiting for small rodents and other small animals to pass by.
Define Commensalism?
Commensalism is a type of symbiotic relationship between two species in which one species benefits from the relationship while the other is unaffected. Examples of commensalism include the relationship between cattle egrets and cattle, where the bird receives food from the cattle, but the cattle do not benefit in any way.
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if you were in a desert without a food source, which nutrient would you like to have stored in your body in a large amount?
A calorimeter is used in the direct calorimetry technique to measure the subject's rate of heat loss. Although it is the most precise method for measuring metabolic rate, its use is constrained by its high price.
The brain needs to be fed with glucose or ketone bodies as a source of energy during starvation. Following a 24-hour period of starvation, carbohydrate reserves are depleted. Gluconeogenesis supplies the glucose that the brain uses during prolonged starvation.
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I need some help with a question.
These all are various terms used in the genetics and the various terms here are related to genotypes and phenotypes along with the ration and the condition of homozygous and heterozygous.
What is genetics ?It is the study of genes and their related factors which are responsible in regulating the gene expression of an individual.
Homozygous is the condition in which the same types of genes are present. Locus is one version of gene. When a carrier takes up the gene for any disease. Physical appearance is called phenotype and the genetic expressions are called as genotype.
100 per 100 is called as percentage and the 1:4 or any number is called as the ratio. The paired genes are present in the form of alleles.
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a population of rabbits introduced to an island grows rapidly for a few years, and then growth slows and stabilizes. the population becomes stable because:
A population of rabbits introduced to an island grows rapidly for a few years, and then growth slows and stabilizes because D) the carrying capacity has been reached.
An ecosystem's carrying capacity is the greatest number of an organism it can support continuously without diminishing natural resources like food, water, etc.
Therefore, when a species is brought into a new environment, it can continue to expand at its natural pace up until the point where the ecosystem hits its carrying capacity. When the carrying capacity of an area has been reached, the number of individuals in that area will no longer increase and will instead become stable as a result of the opposition they face from their environment. Therefore, the answer that should be stated is as; the population becomes stable because (D) the carrying capacity has been reached.
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match the label to the correct structure on the chloroplast
The different structures inside of the chloroplast are shown below in the image form:
What is chloroplast?The chloroplast are the chlorophyll containing organelles present in the organisms which have the ability to carry out photosynthesis. Chloroplasts are double membrane organelles ( actually triple membrane), the outer membrane and the inner membrane. The stroma is the fluid filled space like the matrix of the mitochondria. It contains the enzymes used in the dark reaction of the photosynthesis. The thylakoids contain the photosynthetic pigments and are involved in the light reaction of the photosynthesis. The stack of thylakoids is called grana.
The given figure is of the internal structure of the chloroplast.
The different structures inside of the chloroplast are named as shown in the figure given below:
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The complete question is as follows:
Chloroplast structure atch the label to the correct structure on the chloroplast. Thylakoid Inner Membrane UM Outer Membrane Stroma Thylakold Membrane:
The benificial mutrients help in evolution . why?
Answer:
Well, nutrients can help give you protein and vitamins, So you can do your daily things like walking, running, or doing what you are doing right now typing on your computer.
Explanation:
Answer this question, please
The structure shown in the image that helps to send and receive messages is part of the nervous system. Option 4.
The nervous systemThe nervous system is a system consisting of the brain, the spinal cord, and networks of nerves that work together to send messages between parts of the body and the brain.
The nervous system is divided into two:
The central nervous system which consists of the brain and the spinal cord.The peripheral nervous system which consists of nerves and ganglia.The central nervous system is responsible for receiving sensory information, processing these information, and sending out motor signals. The peripheral nervous system is responsible for carrying information to and from the brain around the body.
The basic unit of the peripheral nervous system is the neuron. The structure pictured in the image is that of a neuron and it functions mainly as a carrier of messages or stimuli.
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investigate unselfish behaviors by completing the sentences. any behavior that benefits another individual at a cost of the individual acting is an example of (click to select) . a benefit of this unselfish behavior may be (click to select) , where other individuals are more likely to help unselfish individuals in future. unselfish aid could increase the odds that the helper passes on their genes but only if the receiver of the help is (click to select) the helper. this type of unselfish act for a relative is termed (click to select) .
investigate unselfish behaviors by completing the sentences. any behavior that benefits another individual. Altruism is the selfless concern for others—acting out of a genuine desire to assist others rather than out of a sense of duty, loyalty, or religious obligation. It entails taking action out of concern for the welfare of others.
Altruistic behavior can take many different forms, according to psychologists. These consist of:
Genetic altruism: As the name suggests, this form of altruism entails doing good deeds for members of one's own family. For instance, parents and other family members frequently make sacrifices to meet the demands of their loved ones.
Altruism that is reciprocal is built on a connection of giving and receiving. It entails aiding someone now in hopes that they may be able to repay the favor later.
Group-selected altruism: This entails doing acts of compassion for individuals based on their membership in a particular group. People may focus their efforts on supporting social initiatives that benefit a particular group or on assisting members of their social group.Genuine altruism
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