Answer:
four are formed
Explanation:
Answer: At the end of meiosis, four haploid cells have been produced, but the cells are not yet gametes. The development of haploid cells into gametes is called gametogenesis. Spermatogenesis produces four haploid sperm cells, while oogenesis produces one mature ovum.
What is Marisma...?
.
Hello..!
¿What is Marisma?
In a soil that is in a depression, below sea level.
This is affected by floods, and also in coastal areas, by the seas.
What are the components of the sympathetic nervous system?
The components of the sympathetic nervous system include:
the preganglionic neurons,the sympathetic ganglia, and the postganglionic neuronsWhat is the sympathetic nervous system?The sympathetic nervous system is a branch of the autonomic nervous system that functions under stressful conditions in the body.
The sympathetic nervous system is responsible for the flight or flight response in living organisms.
The functions of the sympathetic nervous system include:
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The components of the sympathetic nervous system include the following:
Preganglionic fibersGanglia"Fight or Flight"ThoracolumbarNeurotransmitter: norepinephrineWhat is a nervous system?A nervous system simply refers to a network that typically consist of nerve cells and fibers, which are primarily used for the transmission of neural impulses (signals) and control of the muscular system in the body of a living organism.
What is the sympathetic nervous system?The sympathetic nervous system is a type of autonomic nervous system and it can be defined as a network of nerves that is saddled with the responsibility of activating "fight or flight" response in the body of a living organism, especially when in danger, stressed, or indulged in physical exercises.
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It is in the medulla oblongata that corticospinal tracts ______, meaning that the motor fibers originating from the right cerebral cortex descend through the left side of the spinal cord, and vice versa.
It is in the medulla oblongata that corticospinal tracts decussate meaning that the motor fibers originating from the right cerebral cortex descend through the left side of the spinal cord and vice versa.
The corticospinal tract controls the primary motor activity of the somatomotor system from the neck to the feet. It is the main line of the spine involved in voluntary movement. The tract originates in the primary motor cortex, where the soma of pyramidal neurons resides within corticospinal pathways in cortical layer V.
The large descending motor pathway carries voluntary impulses from the brain to the skeletal muscles. The corticospinal tract is a motor pathway primarily composed of motor axons that carry motor information from the cerebral cortex and brainstem to muscles for voluntary movement. The corticospinal tract is a white matter motor pathway that originates in the cerebral cortex and ends in the lower motor neurons and interneurons of the spinal cord.
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Identify the error in the following statement: "Photosynthesis is a chemical reaction that takes place in the chloroplasts of green plant cells, where chemical energy is used to
convert carbon dioxide and water into glucose and oxygen."
A. "chioroplasts" should be "mitochondria"
B. No errors
C. "water" and oxygen should be switched
D. "chemical" should be "light"
For the given statement, the correct answer is "chemical should be light".
OPTION (D) is correct.
Photosynthesis is a chemical reaction that takes place in the chloroplasts of green plant cells, where light energy is used to convert carbon dioxide and water into glucose and oxygen.
What is photosynthesis?Algae also convert solar energy into chemical energy through the process of photosynthesis. Oxygen is produced as a byproduct, and light is regarded to be a key factor in triggering photosynthesis.
Photosynthesis is the process through which plants use light energy to convert carbon dioxide and water into glucose and oxygen. Leaves contain microscopic biological organelles called chloroplasts.
Each chloroplast contains the green pigment known as chlorophyll. While carbon dioxide and oxygen enter through stomata located in the epidermis of leaves, chlorophyll molecules absorb light energy.
Glucose and fructose are two additional sugars produced as a byproduct of photosynthesis.
Intake of light energy by molecules.
Two other sugars created as a consequence of photosynthesis are glucose and fructose.
These sugars are then delivered to the roots, stems, leaves, fruits, flowers, and seeds. In other words, the sugars are used by the plants as a source of energy, which helps them grow. These sugar molecules unite to create more intricate carbohydrates like cellulose and starch. Plant cell walls are thought to be structurally supported by cellulose.
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Which cytokines are believed to contribute to autoimmune disease, such as rheumatoid arthritis?.
There are a number of cytokines that have been implicated in the pathogenesis of autoimmune diseases such as rheumatoid arthritis. These cytokines include interleukin (IL)-1, IL-6, IL-12, IL-17, and tumor necrosis factor (TNF)-alpha.
IL-1 is a pro-inflammatory cytokine that is thought to play a key role in the development of RA. IL-1 is produced by macrophages and other immune cells and can promote the production of other pro-inflammatory cytokines, such as TNF-alpha. IL-1 has also been shown to stimulate the proliferation of synovial cells, which are the cells that line the joints.
IL-6 is another pro-inflammatory cytokine that has been implicated in the pathogenesis of RA. IL-6 is produced by a variety of cells, including T cells, B cells, and macrophages. IL-6 can promote the production of other pro-inflammatory cytokines, such as TNF-alpha. IL-6 has also been shown to stimulate the proliferation of synovial cells.
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Protein is used for tissue growth and muscle repair, and is the main source of energy for the body and the brain.
Answer:
While the primary role of protein is to repair damaged tissues, it can also be used to produce energy for muscle contractions when other sources of adenosine triphosphate (ATP, the cellular form of energy), namely fats and carbohydrates, are not available. Gluconeogenesis is the term that describes how protein is converted to glycogen for ATP.
How are signals transmitted using neurotransmitters?
A: From the synapse to the presynaptic cell, and then to the postsynaptic cell
B: From the postsynaptic cell to the presynaptic cell across a synapse
C: From the presynaptic cell to the postsynaptic cell, and then to a synapse
D: From the presynaptic cell to the postsynaptic cell across a synapse
C: From the presynaptic cell to the postsynaptic cell, and then to a synapse
From the presynaptic cell to the postsynaptic cell across a synapse. Therefore, option (D) is correct.
What are neurotransmitter?Neurotransmitters are chemical messengers that allow communication between neurons in the nervous system. When an action potential (electrical signal) reaches the presynaptic cell, it triggers the release of neurotransmitters from small vesicles located in the presynaptic terminal. These neurotransmitters are then released into the synapse, which is the small gap between the presynaptic cell and the postsynaptic cell.
The released neurotransmitters diffuse across the synapse and bind to specific receptors on the postsynaptic cell. This binding of neurotransmitters to receptors initiates a series of biochemical and electrical changes in the postsynaptic cell, transmitting the signal from the presynaptic cell to the postsynaptic cell. These changes can either excite or inhibit the postsynaptic cell, depending on the type of neurotransmitter and receptor involved.
Overall, signals are transmitted using neurotransmitters by being released from the presynaptic cell, crossing the synapse, and binding to receptors on the postsynaptic cell, allowing for communication between neurons in the nervous system.
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during translation in prokaryotes formation of the initiation complex requires all the following except
a. a small ribosomal subunit.
b. mRNA.
c. RNA charged with N-formyl methionine.
d. RNA polymerase.
e. initiation factors.
11. Which condition causes transpiration to INCREASE?
no air movement
high soil moisture
colder temperatures
lower humidity
which of the following properties of the garden pea were advantageous for Mendel's studies of inheritance?-pea plants can be self-fertilized or cross-fertilized-true-breeding strains were available-pea plants have relatively few chromosomes-many varieties with different traits were available pea plants can be self-fertilized or cross-fertilizedtrue-breeding strains were availablemany varieties with different traits were available
The properties of the garden pea were advantageous for Mendel's studies of inheritance, as pea plants can be self-fertilized or cross-fertilized. The correct option is a.
What are Mendel's studies of inheritance?Mendel investigated the ancestry of seven different pea characteristics, including height, flower color, seed color, and seed shape. To do this, he first created pea lines with two distinct variations of a trait, such as tall vs. small height.
Mendel examined pea inheritance (Pisum sativum). He chose peas because they had previously been used in similar trials, they are easy to grow, and they can be sown every year. Pea blooms have both male and female parts, known as stamen and stigma, and self-pollinate.
Therefore, the correct option is a, pea plants can be self-fertilized or cross-fertilized.
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Icefish live in very cold waters (-1.8 degrees celsius) where temperatures are below blood's freezing point. which statements are true about icefish adaptations for cold water?
Antifreeze proteins are found in ice fish, which prevent blood from freezing. Since ice fish don't have red blood cells, their blood is less viscous and may flow more freely in colder temperatures.
What are the specialties of icefish?White-blooded fish, also known as crocodile icefish, are a family of notothenioid fish that can be found in the Southern Ocean near Antarctica. They are the only known vertebrate species without hemoglobin in adult blood.Medium texture, tiny flake, and a fresh, oily flavor. heavy on the fat. White flesh cooks to a white color.After a Norwegian naturalist caught one in the early 20th century, the icefish first astounded science with its transparent blood. Red blood cells and hemoglobin, which carry oxygen throughout the body, are no longer produced by the species.These fish are the only ones known to lack hemoglobin pigments and red blood cells, which are needed to carry oxygen. The fish's skin merely diffuses oxygen from the chilly ocean into their circulating blood plasma.To learn more about icefish refer to :
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Why does the law of conservation of energy only apply to closed systems
The Law of conservation of energy only applies to closed systems that can't exchange energy with their environment.
The law of conservation of energy, also known as the first law of thermodynamics states that the energy in a closed system must remain constant and cannot increase or decrease without outside influence. In an open system, both energy transfer and mass transfer take place. Therefore, both the law of conservation of energy and the law of conservation of mass is taken into account.
Storage rights cannot be applied to open systems because by definition things can be put into and taken out of open systems. So you can always add charge momentum energy etc. to open systems. Non-insulated and insulated systems, energy conservation. To solve the work and energy problem, we need to identify the systems we work with.
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Please help, thank you!
Mitosis is the division of the ____________ and cytokinesis is the division of the _____________.
cell, chromosomes
nucleus, cytoplasm
chromosomes, centrisomes
cytoplasm, nucleus
Answer: Nucleus cytoplasm
Answer:
Nucleas;cytoplasm
Explanation:
Mitosis divides the nucleus into two nuclei, followed by cytokinesis which divides the cytoplasm.
Brainliest pleaseee
In what way did scientific research influence the green revolution
Option A. It resulted in the development of specialized crops and new technology designed to grow as much as possible.
The Green Revolution, or the 0.33 Agricultural Revolution, is the set of studies on generation transfer tasks happening between 1950 and the overdue Nineteen Sixties that multiplied agricultural production in parts of the world, starting maximum markedly within the overdue Sixties.
The green revolution, the high-quality boom in the production of meal grains (especially wheat and rice) led to huge elements from the advent into developing countries of new, excessive-yielding types, beginning in the mid-twentieth century. Its early dramatic successes were in Mexico and the Indian subcontinent.
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Identify the stage of cellular respiration in which each of the following takes place.
Explanation:
There are three main steps of cellular respiration: glycolysis; the citric acid (TCA) or the Krebs cycle; and the electron transport chain, where oxidative phosphorylation occurs. The TCA cycle and oxidative phosphorylation require oxygen, while glycolysis can occur in anaerobic conditions.
The tendency of sensory receptor cells to become less responsive to a stimulus that is unchanging is called.
In response to a constant stimulus, sensory adaptation causes receptor cells to become less sensitive.
What is the term for the stimulation-induced activation of receptors?When sensory receptors are activated in response to a stimuli, it is called a sensation. The process of turning sensory input into a meaningful pattern that involves awareness is called perception. However, not all sensations are perceived, despite the fact that perception is based on sensation.
What exactly happens once a sensory organ picks up a stimulus is described by what term?Sensation is the term used to describe the physical process through which our sense organs, such as those responsible for hearing and taste, react to outside stimuli. Eating noodles, feeling the breeze on your face, or hearing a distant automobile horn honk all cause sensation.
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Question 3 of 10
Which activity is an example of a comparative investigation?
OA. Collecting and analyzing data about water quality in two different
wetland areas
OB. Testing the effects of pesticides on the growth rates of fish native
to a wetland
OC. Observing and recording the nesting habits of a species of bird
living in a wetland
OD. Calculating the size of a bird population living in a wetland
BUBMER
A comparative investigation is Testing the effects of pesticides on the growth rates of fish native to a wetland. Option B.
Determining the boiling points of three different liquids and observing the external structure of two different insects with a hand lens are examples of comparative studies. Comparative studies can use a wide range of variables, but have no control group, while experimental studies include variables that can be controlled.
Comparative study questions should be stakeholder relevant and have an overall focus. Comparative studies are used to determine and quantify the relationship between two or more variables by observing different groups exposed to different treatments either voluntarily or as a result of circumstances. A comparative study examines two or more similar groups of individuals or conditions in comparison to each other.
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An 0.714 mol sample of krypton gas at a temperature of 20.0°C is found to occupy a volume of 25.6 liters.
The pressure of this gas sample is —— atm.
Pls help!!! Asap
The pressure of the gas sample is 4.64 atm.
What is pressure?Pressure is defined as the force applied perpendicular to the surface of an object per unit area over which the force will be applied. The SI unit of pressure is pascal or N m⁻². There are basically three types of pressure absolute pressure, differential pressure and gauge pressure. Pressure can also be expressed as force per unit area.
Given n= 0.714 mole
T = 20.0 °C
V = 25.6 liter
R = 8.31 J/K/mole
As we know that
PV = nRT
P = nRT / V
P = 0.714 x 8.31 x 20.0 / 25.6
P = 4.64 atm
Thus, the pressure of the gas sample is 4.64 atm.
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Population Growth
4. If the fish population stays the same and suddenly the
amount of deaths decrease but the amount of births stays
the same. What will happen to the number of fish in the
population?
5. If you added the fishing to the graph on the left, where
would that belong? At the top (population increasing) or
the bottom (population decreasing). Explain why
the number of fish decrease
Resistance training decreases blood flow to your muscles.
O True
O False
Answer:
false
Explanation:
Doing one resistance training routine gets more blood flowing through your body because it widens your blood vessels.
Which two hormones regulate calcium levels in the blood?
Explanation:
Both parathyroid harmone and calcitonin help regulate the level of calcium in your blood.
Calcitonin and parathyroid hormone work together to control blood calcium levels, which are crucial for a number of vital biological processes.
When the blood calcium level is high, calcitonin is released. It subsequently reduces the levels by preventing bones' release of calcium ions. Contrarily, the parathyroid hormone raises the blood calcium level by enhancing intestinal calcium absorption and moving calcium from bones into the blood.
A hormone called calcitonin works to control the amount of calcium in your blood by lowering it. Your thyroid gland's C-cells generate calcitonin. It doesn't seem that having abnormally high amounts of calcitonin in your body has any immediate drawbacks.
Your parathyroid glands produce a hormone called parathyroid hormone (PTH) that regulates the amount of calcium in your blood. It also regulates the amounts of vitamin D and phosphorus. Parathyroid hormone over- or under-production might result in symptoms linked to abnormal blood calcium levels.
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Which of these phases includes all of the stages of mitosis but no other events?.
Both mitosis and cytokinesis are included in the mitotic phase. You recently reviewed 26 terms.
What are the stages of mitosis?a nuclear division process that occurs in eukaryotic cells and is often separated into prophase, prometaphase, metaphase, anaphase, and telophase.
What happens only during mitosis and not during meiosis?While the daughter cells created during meiosis are distinct due to crossing over, the daughter cells created during mitosis are identical. Homologous chromosomes couple up, cross over, and line up in tetrads along the metaphase plate during meiosis, but not during mitosis.
Prometaphase is the name for prophase at a later stage. The prophase of mitosis is when the spindle begins to develop. During prometaphase, the spindles begin to connect to the centromeres and kinetochores of sister chromatids. Prophase is the first and longest stage of mitosis.
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In ___ a bell or tuning fork can be chosen to eliminate unknown contingencies. A. genetic conditioning B. classical conditioning C. progressive conditioning D. operant conditioning
In classical conditioning a bell or tuning fork can be chosen to eliminate unknown contingencies.
Classical conditioning is a form of behavioral learning in which a previously neutral stimulus acquires the power to evoke the same innate reflect produced by another stimulus.
Classical conditioning is a type of learning that happens unconsciously. When you learn through classical conditioning, an automatic response is reflex with a specific stimulus. example include Pavlov's experiment with dogs, he begin with providing the neutral signal as a sound tone and in dogs the naturally occurring reflex was salivation for food.
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Proteins are the most complex organic compounds. What determines how proteins are produced?.
Proteins are the maximum complex organic compounds that DNA presents as the instructions for making needed proteins.
The type of RNA that contains the records for creating a protein is known as messenger RNA (mRNA) because it contains the records, or message, from the DNA out of the nucleus into the cytoplasm.
The facts to make proteins are stored in an organism's DNA. every protein is coded for through a selected section of DNA called a gene. A gene is the section of DNA required to produce one protein.
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How many alleles can one person inherit for a gene that has 100 possible alleles.
Despite the fact that humans (and all other diploid species) can only have two alleles for a given gene, a population can contain multiple alleles and thus a large number of combination of two alleles of can be observed.
What are alleles?Alleles are variations of the same nucleotide sequence at the same position in a long DNA molecule, as described in major textbooks on genetics and evolution.
In humans, when a sperm cell fertilizes an egg cell, the fertilized egg cell inherits her 23 chromosomes from each parent. Each pair of matched chromosomes contains the same set of genes, but each locus has a unique allele for each gene.
This inheritance means that an individual has two copies of the gene for a particular trait. one from her mother and one from her father. These are said to be the maternal and paternal alleles. These allelic interactions are responsible for their unique trait.
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HELPPPPPPPP ASAPPPPP
1. how many are in interphase, prophase,metaphase, anaphase and telophase. don’t worry im just looking for a close estimate.
Interphase
Prophase
Metaphase
Anaphase
Telophase
2. which phase are most of the cells in interphase, mitosis, or cytokinesis? why?
The correct the sequence of mitosis is prophase, metaphase, anaphase, and telophase and the phase are most of the cells is mitosis.
What is mitosis?The term mitosis has been defined as the procedures that occurs in the nucleus of a dividing cell, typically consisting of prophase, metaphase, anaphase, and telophase. It results in the formation of two new nuclei, each with the same number of chromosomes as the parent.
The four stages of mitosis are also called the prophase, metaphase, anaphase, telophase. Moreover, here we mentioned the other intermediary stages that involved interphase, prometaphase, and cytokinesis which played the role in mitosis.
Therefore, The correct the sequence of mitosis is prophase, metaphase, anaphase, and telophase and the phase are most of the cells is mitosis.
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It's a QR code to my survey that I need for my science project. Would appreciate if you did it, thanks :)
Answer:
I did it GL
Explanation:
Which type of stem cell is able to differentiate into any cell type, including extraembryonic placental cells?.
Extraembryonic placental cells are one of the several cell types that totipotent stem cells can differentiate into.
What do you mean by Totipotent stem cell?Totipotent stem cells, which can also reach the germ line and pass on genetic information to succeeding generations, can produce all adult cell types. Zygote or fertilized egg is totipotent stem cell. The well-known totipotent stem cells are only present in the early embryonic tissues and are typically derived from the first few cell divisions following fertilization.
In vitro fertilization (IVF), a procedure in which sperm and eggs (ova) acquired by laparoscopic surgery are placed in culture dishes and allowed to pair, can produce totipotent stem cells from fertilized eggs.
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Why is it important not to leave fingerprints or scratch the sample cells in spectrophotometric measurements?.
Scuffs and fingerprints on the cell's surface can restrict the amount of light that reaches the detector. If it does, your results won't be accurate.
What are spectrophotometric measurements?By measuring the light intensity as a beam of light passes through a sample solution, a process known as spectrophotometry can ascertain how much a chemical component absorbs light. Every substance either absorbs or transmits light across a specified wavelength range, according to the basic premise.
This equipment must be used with caution if you want to determine the concentration of a specific solution accurately. The wavelength can be incorrect if specific pre-processing procedures weren't performed.
When handling or cleaning the cuvette, always use a lint-free cloth, and be careful to wipe out any possible water.
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when materials are heated they may
