The endoplasmic reticulum is an organelle that produces lipids and bundles proteins for storage within the cell.
What are lipids?The group of molecules known as lipids is diverse and consists of chemicals such as waxes, fats, and other substances. As opposed to being soluble in polar solvents like ether, chloroform, and benzene, they are soluble in nonpolar solvents like water.
Which organelle produces lipids?The endoplasmic reticulum is an organelle that produces lipids and bundles proteins for storage within the cell(ER). The nuclear envelope is linked to a network of flattened sacs and tubules known as the ER. The smooth endoplasmic reticulum (SER) and the rough endoplasmic reticulum (RER) are the two forms of ER (SER). Ribosomes, which are in charge of protein synthesis and modification, are embedded in the cytoplasmic surface of the RER. These proteins are subsequently sent to the RER lumen, where they undergo additional folding and modification before being moved to other areas of the cell or released outside the cell. Steroids and phospholipids are among the lipids that are produced and modified by the SER.
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Construct a dichotomous key for:
A Spiny Spider crab (Maia squinado)
B Hairy hermit crab (Pagurus hirsutiusculus)
C West African fiddler crab (Uca tangeri)
D Sand crab (Portunus pelagicus)
Construct a dichotomous key for a Spiny Spider crab (Maia squinado).
What are Spiny Spider crab ?A spider crab species called Maja squinado may be found in the north-east Atlantic and the Mediterranean Sea. It is also known as the European spider crab, spiny spider crab, or spinous spider crab. [1] The European spider crab resembles the considerably bigger Japanese spider crab in appearance.One of the most recognisable British Crustacea is without a doubt the Spider Crab, Maja squinado. The crab is easily recognised thanks to its size and orange spiky shell. The enormous size of the males' claws, which can span 1–5 metres or more, can be used to distinguish between the sexes.To learn more about Spiny Spider crab refer to:
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where does the right atrium pump blood when it contracts
The right ventricle pumps blood through a valve into the pulmonary artery and the lungs, where it picks up oxygen.
what is right atrium ?
The right atrium is an upper chamber of the heart that aids in blood circulation. It gathers deoxygenated blood and routes it to the lungs to get oxygen. Disorders with the right atrium can arise at birth or as a result of cardiac valve or muscle problems. They can cause arrhythmias, blood clots, and cardiac failure.
This article will go over the construction and function of the right atrium, as well as the many difficulties and challenges that might arise as a result of it.
The right ventricle pumps blood through a valve into the pulmonary artery and the lungs, where it picks up oxygen.
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the characteristics of the individuals within the population.
Variables are the characteristics of the individuals within the population.
Variables are essential for understanding a population, as they provide insight into the characteristics of the individuals within it.
They can reveal things such as age, gender, location, and many other factors, allowing us to gain a better understanding of the people who make up the population.
By collecting data on these variables, we can gain a clearer picture of the population, and how various factors might influence it.
Variables are essential elements of a population. They provide the characteristics of each individual within the population and are used to analyze data for the purpose of understanding trends, patterns, and changes.
By understanding the variables and their respective values, we can gain valuable insights about the population in question.
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Even though we have over 3 billion base pairs in our DNA, when our cells make a copy, we end up with only a small number of mutations. What explains that?
PLEASE ANSWER QUICKLY!!!!!!
What will happen to protein when the DNA codes for a different amino acid?
Answer:
alter the function of the resulting protein.
compound used by cells to store and release energy
Adenosine triphosphate( ATP) is an important emulsion used by cells to store and release energy.
It's composed of a nitrogenous base( adenine), a five- carbon sugar( ribose), and three phosphate groups. ATP is the major energy currency of cells, which uses the energy stored in the bonds between the phosphate groups to power numerous metabolic processes. ATP is produced in cells through metabolism and is used to drive a variety of cellular processes,
similar as muscle compression, whim-whams impulse transmission, and conservation of ion slants. It's also used for the conflation of macromolecules and for the regulation of gene expression. ATP is continually used and reclaimed in cells, furnishing energy to power the processes of life.
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Select the correct statement regarding adipose tissue: its primary function is nutrient storage it is composed mostly of extracellular matrix mature adipose cells are highly mitotic most of the cell volume is occupied by the nucleus adipocytes are found in lacunae
Its main job is to store nutrients. Lipids, which are stored as energy in fat cells (or fat). Once produced from progenitor cells, they are not particularly mitotic cells and frequently do not divide at all.
What is the main function of adipose tissue?It can be found in bone's interior cavities, subcutaneous fat beneath the skin, and visceral fat between your internal organs (bone marrow adipose tissue).
Is nutrient storage the primary function of adipose tissue?Adipose tissue is a crucial regulator of the systemic energy balance because it acts as a caloric reserve. Adipose tissue uses lipolysis to supply nutrients to neighboring tissues in nutrient deficiencies while storing additional resources as neutral lipids in nutrient surpluses.
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Which immune cells are activated first when suspicious cells are identified in the blood stream?
The immune cells are activated first when suspicious cells are identified in the bloodstream as neutrophils.
What are neutrophils?Neutrophils аre phаgocytes, typicаlly the first cells to аrrive аt the site of аn infection, аs numerous neutrophils keep circulаting in the blood streаm аt аny given time. Neutrophils аre аlso cаlled polymorpho-nucleаr cells (PMNs) becаuse of the multi-lobed nаture of their nuclei, which аre produced in the bone mаrrow.
Neutrophils possess grаnules which аre cаpаble of killing microbes in their cytoplаsm, аnd hence аre known аs grаnulocytes. These short-lived neutrophils comprise the mаjority of white blood cells. Neutrophils hаve severаl different types of surfаce receptors thаt recognize specific molecules or pаtterns present exclusively in microbes. Some surfаce receptors аre chemoаttrаctаnt receptors, for аttrаction of neutrophils towаrds the microbes. Thus, the mаin function of neutrophils is to pаtrol the body, looking for the invаding microbes аnd to immediаtely respond to inflаmmаtion to phаgocytose them.
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Explain how ecosystems could be impacted from each indicator of climate change
*will give brainliest*
Answer: The ecosystem can be impacted by different climate changes like migration patterns of birds, the population of marine life, plants' life cycle, and changes in the direction of the water bodies etc.
Explanation: Changes in the climate can affect animal behaviour, habitats etc. It can lead to a change in migration patterns as well. Changes in these cycles affect the functioning of the ecosystem due to which the risk of extinction of species increases.
Wildlife tends to occur naturally but over the period climatic changes like the rise in temperature have led to the occurrence of wildfires more often and it affects the ecosystem by putting property and life at risk.
Plants and animals have also adapted to nature and the change in nature leads to a change in adaptation hence the risk of extinction and disruption within species have increased.
Why does earth have a lower amount of carbon in the atmosphere than plants such as venus and mars.
Because Earth is home to photosynthetic plants, which require a lot of carbon dioxide in their photosynthetic process, its atmosphere contains less carbon than that of worlds like Venus and Mars.
Despite the fact that Earth has vast oceans of liquid water, Venus and Mars are thought to have atmospheres dominated by carbon dioxide. Since carbon dioxide is easily dissolved in water, a significant amount of the atmospheric CO2 was absorbed by our oceans, creating an ecosystem where ammonia predominates. Compared to Venus, Earth's volcanoes produced significantly less carbon dioxide gas. Carbon dioxide was originally abundant on Earth, but it was lost to space during the violent bombardment that occurred early in the history of our solar system. Venus and Earth both have roughly the same amount of carbon dioxide, although on Earth the majority of it is dissolved in water and carbonate rocks (there is no water on Venus). On Venus, the atmosphere contains all of the carbon dioxide.
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nuclear membrane reforms, cytoplasm divides, 4 daughter cells formed
The nuclear membrane reforms, the cytoplasm divides, and 4 daughter cells form in telophase II.
The fourth stage of meiosis II, telophase II, sees the opposite poles of the chromosomes, cytokinesis, the division of the two cells produced by meiosis I into four haploid daughter cells, and the formation of nuclear envelopes. The nuclear membranes of the two cells are fully formed at the conclusion of telophase II. After that, meiosis is over. When it comes to males, each cell produces sperm. One cell becomes an egg in females, and the other three become polar bodies that are not used.
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What does Mendel do with the F1 generation of green seed plants?.
Mendel conducted a series of experiments with the F1 generation of green seed plants, specifically pea plants, to investigate the inheritance of certain traits. He cross-bred true-breeding plants with different traits, such as seed color (yellow vs green) and seed shape (round vs wrinkled), and observed the characteristics of the resulting F1 generation. He then self-fertilized the F1 plants and studied the characteristics of the F2 generation.
Through these experiments, Mendel discovered the principles of dominant and recessive genes, and the laws of segregation and independent assortment, which form the basis of modern genetics.
In his experiments, Mendel cross-pollinated true-breeding plants with contrasting traits, such as green seed color and round seed shape, and then observed the characteristics of the resulting F1 generation.
He found that the F1 plants all had the dominant trait, in this case, yellow seed color and round seed shape, but that the recessive traits, green seed color, and wrinkled seed shape, were still present in the plant's genetic makeup. He then self-fertilized the F1 plants and studied the characteristics of the F2 generation. Through his observations and analysis of the data, Mendel discovered that the traits of the F2 generation followed certain patterns of inheritance, which he formulated into his two laws: the law of segregation and the rule of independent assortment.
These laws explain how traits are passed down from parent to offspring and are the foundation of modern genetics.
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What color of the visible light is reflected when the plant leaves appear as a green in color?.
Red color of the visible light is reflected when the plant leaves appear as a green in color.
Because the "special pair" of chlorophyll molecules uses the red end of the visible light spectrum to power reactions inside each cell, plants and their leaves appear green. [tex]CO^{2}[/tex] is employed in the light-independent processes as it dissolves in the stroma during these reactions. Several processes involving this gas lead to the creation of sugars. The plant then uses extra sugar molecules as food in a manner similar to how humans do, storing them as starch to be used at a later time, much like mammals' store fat.
As a result, the red portion of the light spectrum stimulates the electrons in plant leaves, while the light that is reflected (or left unused) is composed primarily of wavelengths that are green, which is the complementary color to red.
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What process allows the amount of DNA in an organism's cells to be kept constant in sexually reproducing species?
O binary fission
O reduction division
O fertilization
O mitosis
What process allows the amount of DNA in an organism's cells to be kept constant in sexually reproducing species?
Meiosis is the process through which sexually reproducing organisms maintain their particular chromosomal numbers from generation to generation. In humans, meiosis generates sperm and eggs, each having 23 chromosomes. By fertilizing sperm and ova, the chromosome number is restored in the zygote (46 chromosomes).
The sperm and egg carry half as many chromosomes as body cells since they are haploid (n) (in humans, 23 in each sperm and egg).
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What barriers might hinder the acquisition of plasmids?
Barriers that might hinder the acquisition of plasmids:
-Antisense RNA controls the replication of plasmids.
- Protein and repeated sequence control over the replication of plasmids.
-Partition systems act as mediators of compatibility.
Plasmids are genetic components that frequently function as strains of bacteria. They have a control system that is related to the number of copies in order to avert the plasmid's demise. These systems control and respond to the changes that can result from an increase or decrease in the number of copies. Plasmid incompatibility is primarily caused by the aforementioned systems.
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Photosynthesis takes place in the_____and converts solar energy, water, and co2 into____for the plant cell.
Photosynthesis takes place in the chloroplast and converts solar energy, water, and [tex]CO_{2}[/tex] into glucose for the plant cell.
Photosynthesis is an essential process for plants, allowing them to convert solar energy, water, and carbon dioxide into glucose for their cells.
This miraculous process takes place in the chloroplast, which is located within the plant cell.
During photosynthesis, light energy is absorbed by the chloroplast, which then initiates a series of chemical reactions.
These reactions convert the energy, water, and carbon dioxide into glucose and other compounds, providing energy for the plant cells.
Photosynthesis is an incredible process that allows plants to produce their own food and survive in their environment.
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What are 5 facts about Gregor Mendel?.
Gregor Mendel was an Austrian monk and scientist who is considered the father of modern genetics.
Mendel's work on the inheritance of traits in pea plants laid the foundation for the modern understanding of genetics.
Mendel's work was not widely recognized during his lifetime but was rediscovered in the early 1900s.
Mendel formulated the laws of inheritance, which are now known as Mendel's laws.
Mendel's laws explain how traits are passed down from parents to offspring, and how different versions of genes (alleles) can result in different traits.
Gregor Mendel was a monk and scientist who lived in the 19th century. He is known for his pioneering work in the field of genetics.
Mendel worked with pea plants, studying the inheritance of different traits such as flower color and seed shape.
Through careful experimentation and observation, Mendel discovered that traits are passed down from parents to offspring in a predictable way, which he formulated into laws of inheritance.
These laws are now known as Mendel's laws. Mendel's work laid the foundation for the modern understanding of genetics, but his discoveries were not widely recognized during his lifetime.
They were rediscovered in the early 20th century and his work is considered one of the major milestones in the field of biology.
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Are larger elements made with fusion or fission? Are they easier or harder to make?
Answer:
Fusion
Explanation:
Fusion occurs when two atoms slam together to form a heavier atom, like when two hydrogen atoms fuse to form one helium atom. This is the same process that powers the sun and creates huge amounts of energy—several times greater than fission.
Fission prevents heavier elements from forming
Which endocrine organ is suspended from the floor of the hypothalamus?Multiple choice question.Thymus glandThyroid glandPineal glandPituitary gland
C) The hypophysis, or pituitary gland, is located in the sella turcica, a sphenoid bone depression, and is suspended from the floor of the hypothalamus by an infundibulum.
Below the hypothalamus, what gland is suspended?The pituitary gland, also known as the hypophysis, is a round organ that is immediately beneath the hypothalamus and rests in the sella turcica, or "Turkish saddle," a depression in the base of the skull.
Where does the pituitary gland hang?Small perforating vessels supply the anterior pituitary with blood from long hypophyseal vessels that surround the pituitary stalk.
What is the hypothalamic endocrine system like?The endocrine system relies heavily on the hypothalamus. Homeostasis, or maintaining internal balance, is the responsibility of the hypothalamus. The hypothalamus contributes to the stimulation or inhibition of numerous essential body processes in this regard, including: Blood pressure and heart rate.
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Did the Comte poison Claire?.
The sixth season of the show's source material has the answer as to whether Malva is to blame for Claire's condition.
According to the story, Malva poisons Claire during the pandemic because she thinks that people will mistakenly think that she is infected with the disease that killed many of the settlers. As soon as she finds out about her pregnancy, Malva tries to blame Jamie for it. A love charm is used by her, but it is unsuccessful. Malva decides to kill Claire while drawing Jamie to her and understands that she shouldn't be moving in that direction. She gathers blood and mucous from the body of the sin-dead eater and hides it in her attire. When the virus kills a sizable number of settlers, she combines the.
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Topic 4a (6) The three main limiting factors that affect the rate of photosynthesis
Answer:
Light intensity, Carbon Dioxide concentration and temperature.
Which of these is one of the Milankovitch cycles?
Responses
changes in the length of Earth’s orbit
changes in the time between Earth’s seasons
changes in Earth’s tilt
changes in the distance between Earth and the sun
The one that is in Milankovitch cycles changes in Earth’s tilt. The correct option is C.
What is Milankovitch cycle?The eccentricity of Earth's orbit, the obliquity of its axis with respect to its orbital plane, and the direction of its spin axis are all factors that are considered in Milankovitch cycles (its precession).
The Earth's orbit, axial tilt, and wobble change over long periods of time due to Milankovitch cycles.
Long-term climate changes are influenced by these variations. They kick off ice ages and naturally occurring periods of global warming.
Eccentricity, obliquity, and precession are the three components of Milankovitch cycles. Eccentricity is a term used to indicate how elliptically the Earth's orbit around the Sun varies from being circular.
Thus, the correct option is C.
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Why is it important to study cancer cells?.
Answer:
Cancer research transforms and saves lives. The purpose of studying cancer is to develop safe and effective methods to prevent, detect, diagnose, treat, and, ultimately, cure the collections of diseases we call cancer.
which hormone stimulates the mammary glands to produce milk after childbirth?
After childbirth, the hormone prolactin plays a major role in stimulating the mammary glands to produce milk.
Prolactin is the hormone that is released by the pituitary gland in response to the suckling of the baby, and is essential in the production of milk.
It helps to control the growth and development of the mammary glands, and also helps to regulate the production and release of milk.
Additionally, oxytocin is released during breastfeeding, which helps to cause the milk to flow from the mammary glands.
Additionally, it can have an impact on the immune system and bone health.
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Choose all that are components of a visceral reflex arc in order.
- Receptor
- Interneuron
- Efferent neurons
- Effector
- Afferent neuron
Components of a visceral reflex arc in order are Receptor, Afferent neuron, Interneuron, Efferent neurons, Effector
What is Efferent neurons?Efferent neurons, also known as motor neurons, are a type of neuron that sends signals from the central nervous system (CNS) to muscles, glands, and organs. They play a key role in controlling the body’s functions, either directly or indirectly. They can be sensory or motor, depending on the signals they carry. Efferent neurons send signals to muscles to contract, to glands to secrete hormones, and to organs to alter their activities. They also help control the body's reflexes and movement. Efferent neurons are responsible for voluntary and involuntary movements, such as walking, speaking, and breathing. They also control the body’s autonomic functions, such as digestion, heart rate, and blood pressure.
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absorb wavelengths of light different from those absorbed by chlorophyll
Carotenoids absorb wavelengths of light different from those absorbed by chlorophyll
What are carotenoids?
Chlorophylls do not absorb wavelengths of green and yellow, which is indicated by very low degree of light absorption from about 500 to 600 nm. Absorption spectrum of β-carotene ( carotenoid pigment) includes violet and blue-green light, as indicated by its peaks at around 450 and 475 nm.
Chlorophyll, green pigment common to all photosynthetic cells, absorbs all wavelengths of visible light except green, which it reflects. This is why plants appear green to us. Black pigments absorb all wavelengths of visible light that strike them. White pigments reflect most of wavelengths striking them.
Chlorophyll a absorbs violet and orange light the most. Chlorophyll b absorbs the mostly blue and yellow light. They both also absorb the light of other wavelengths with less intensity
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One side (one polymer of nucleotides) of the dna molecule is said to be complementary to the other side of the molecule. Which of these best formulates how the structure of dna pairs perfectly to the process of dna replication?.
During DNA replication inside a cell, each of the two old DNA strands serves as a template for the formation of an entire new strand.
What are the replication mechanisms?The continual growth of both new strands at the replication fork as it moves from one end of a DNA molecule to the other initially appeared to be the simplest process of DNA replication. However, this method would need one daughter strand to polymerize in the 5′-to-3′ direction and the other in the 3′-to-5′ direction due to the DNA double helix's antiparallel orientation . It would take two distinct DNA polymerase enzymes to create such a replication fork. Each incoming deoxyribonucleoside triphosphate carried the triphosphate activation required for its own addition, causing polymerization to occur in the 5′-to-3′ direction. The other would travel in the 3′ to 5′ direction and operate through a process known as "head growth," in which
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steroid hormones are synthesized from amino acids.
Steroid hormones are not synthesized from amino acids. Steroid hormones are a class of hormones that are synthesized from cholesterol.
Cholesterol is a steroid, which is a type of lipid. It is a precursor for the synthesis of steroid hormones, such as androgens, estrogens, and progestogens. Cholesterol is converted into steroid hormones in the endocrine glands such as the gonads (testes and ovaries) and adrenal glands.
The steroid hormone synthesis starts with the conversion of cholesterol to pregnenolone, which is then converted to other steroid hormones such as progesterone, androstenedione, testosterone, and estradiol. These hormones are lipid-soluble, which allows them to diffuse through the cell membrane, and interact with intracellular receptors to modulate gene expression or other cellular responses.
Amino acids, on the other hand, are the building blocks of proteins, they are not precursors for steroid hormone synthesis. They are used in the synthesis of other hormones such as adrenaline, insulin, growth hormone, and thyroid hormones.
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tissue forms glands and lines cavities of the body?
All of your body's interior and external surfaces are covered by a type of tissue called epithelium, which is also the main tissue in glands and lines bodily cavities and hollow organs.
What kind of tissues are glands made of? All of your body's interior and external surfaces are covered by a type of tissue called epithelium, which is also the main tissue in glands and lines bodily cavities and hollow organs.Every part of the body contains epithelial tissues.They are the primary tissue in glands and make up the covering on all of the body's surfaces, the lining of body cavities, and hollow organs.A mesodermally produced epithelium known as the mesothelium, supported by connective tissue, makes up a serous membrane, which is an epithelial membrane.The coelomic cavities of the body, or those cavities that are closed off from the outside world, are lined by these membranes, which also cover the organs that are housed inside.To learn more about epithelium refer
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the study of structure or morphology of body parts is
The study of structure or morphology of body parts is anatomy.
Anatomy is the study of the structure or morphology of body parts. It is a branch of biology that focuses on the physical form and structure of plants and animals.
Anatomy is an important field of study for medical professionals, as it provides the basis for understanding how the body works.
Additionally, understanding anatomy can help us better understand diseases, medical treatments, and how to prevent them.
It is an important area of knowledge that helps us understand how the body works, and how different parts of the body interact and function together.
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