What is true about steroid hormones?
Answers
Steroid hormones are derived from cholesterol and have specific characteristics and functions in the body. Steroid hormones are lipid-based molecules that are synthesized from cholesterol in various endocrine glands, such as the adrenal cortex, ovaries, and testes.
These hormones are characterized by their ability to easily pass through cell membranes due to their lipid solubility. Once inside the target cells, steroid hormones bind to specific receptor proteins, forming hormone-receptor complexes. These complexes then enter the cell nucleus, where they can directly influence gene expression by binding to specific DNA sequences.
Steroid hormones play essential roles in regulating a wide range of physiological processes in the body. They are involved in the regulation of metabolism, immune response, development and growth, reproduction, and the maintenance of electrolyte balance. Examples of steroid hormones include cortisol, aldosterone, estrogen, progesterone, and testosterone.
It is important to note that steroid hormones are distinct from anabolic steroids, which are synthetic variations of testosterone used illicitly for performance enhancement purposes. The use of anabolic steroids can have detrimental effects on health and should not be confused with the natural steroid hormones produced in the body.
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Related Questions
If you were going to use morphology, which of these animals would you think is most related to a hawk: a shark, a bat, or an alligator? Explain what morphological criteria you used to make your choice.
Answers
Hi, In my opinion, bat will be the most closely related to hawk.
Why?This is because, when we consider the photo of a bat and a hawk, we notice the similarities like:-
• Wings- They have nearly the same short wings decreasing the area of contact with air and enabling higher flight area.
• Presence of small snouted beak-like structure and presence of less or more similar color.
• Both live in trees and are normally not companiable with humans.
• Hawks and bats are both having a similar anatomy, not body, I meant that they have similar positioning of organs like stomach, pancreas etc.
• They have the sense of locating prey miles away, enabling easier locating of food.
Hope this helps...
Hope this helps...{ Answered by Benjemin }
which of the following statements best summarizes dna replication in the cell?first a primer is added by rna primase. then, the dna double-helix is unwound by helicase. finally, dna polymerase adds nucleotides that are complementary to the single-stranded dna to create a new double-helix dna molecule.first the dna double-helix is unwound by helicase. then, a primer is added by dna polymerase to the single-stranded dna. finally, rna primase adds nucleotides that are complementary to the single-stranded dna to create a new double-helix dna molecule.first the dna double-helix is unwound by helicase. then, dna polymerase adds nucleotides that are complementary to the single-stranded dna. finally, a primer is added by rna primase to the single-stranded dna to create a new double-helix dna molecule. first the dna double-helix is unwound by rna primase. then, a primer is added by helicase to the single-stranded dna. finally, dna polymerase adds nucleotides that are complementary to the single-stranded dna to create a new double-helix dna molecule.first the dna double-helix is unwound by helicase. then, a primer is added by dna primase to the single-stranded dna. finally, dna polymerase adds nucleotides that are complementary to the single-stranded dna to create a new double-helix dna molecule.
Answers
The statement that best summarizes DNA replication in the cell is: First, the DNA double-helix is unwound by helicase.
Then, DNA polymerase adds nucleotides that are complementary to the single-stranded DNA. Finally, a primer is added by RNA primase to the single-stranded DNA to create a new double-helix DNA molecule.
During DNA replication, the double-stranded DNA molecule is unwound by helicase, which separates the two strands and forms a replication fork. This creates two single-stranded DNA templates. DNA polymerase then binds to the single-stranded DNA and adds complementary nucleotides to each template, following the base pairing rules (A with T, G with C). The nucleotides are joined together, forming a new complementary strand on each template.
However, DNA polymerase requires a short RNA primer to initiate the synthesis of the new DNA strand. This primer is synthesized by RNA primase, which adds a short RNA sequence complementary to the DNA template. Once the primer is in place, DNA polymerase extends the primer by adding nucleotides that are complementary to the template strand, resulting in the elongation of the new DNA strand.
The process of DNA replication continues along the entire length of the DNA molecule, with the leading strand being synthesized continuously in the 5' to 3' direction, and the lagging strand being synthesized discontinuously in small fragments called Okazaki fragments. Eventually, the RNA primers are removed, and the gaps between the Okazaki fragments are filled by DNA polymerase. The result is two identical double-stranded DNA molecules, each consisting of one original strand and one newly synthesized strand.
It is important to note that while all the components mentioned (helicase, DNA polymerase, and RNA primase) are involved in DNA replication, the correct order of their actions is essential for accurate and efficient replication of the DNA molecule.
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Some areas of the brain control basic life functions such as regulation of breathing and heart rate. for this reason, you may not survive damage to your:
Answers
To continue breathing, the spinal cord is instructed by the medulla oblongata whereas pons promotes a steady pattern of breathing and respiratory changes are caused by the midbrain.
What are the Effects of Breathing on the Brain?Breathing is more than a piece of common-sense advice. According to study, various breathing patterns can affect thoughts, feelings, and actions. It turns out that breathing can have significant effects on the brain.
The amygdala, a region of the brain that is predominantly involved in emotional learning and behaviour, is activated when breathing rate is increased. Therefore, quick and shallow breathing might cause emotions like worry, rage, or terror.
On the other hand, slow, deep breathing, such as when you're meditating, activates the vagus nerves, which control your breathing. So doing can relax your brain and disable the "fight or flight" instinct.
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Hi! Not the best w Biology/science, so not sure how to understand this or what the answer is.
In a food chain, energy is passed from one organism to another.
Wheat → Mouse → Snake → Owl
Which organism in this food chain has the most available energy?
Select one:
snake
owl
mouse
wheat
Answers
Answer:
wheat
Explanation:
because it is producer
what might be the possible mechanism for the effect of gymnema on the perception of taste
Answers
The effect of gymnema on the perception of taste is that it leads to a change in the way an individual will perceive the food.
What is the effect of gymnema on the perception of taste?The term "destroyer of sugar" is the gymmama. Gymnema is now utilized to treat diabetes, metabolic syndrome, obesity, cough, and In addition, it is employed as a diuretic, digestive stimulant, laxative, and antidote for snakebites in addition to treating malaria. Miraculin binds to the receptors for sweetness when taste buds are exposed to it.
Acidic foods that are typically sour in flavor, like citrus, are perceived as sweet as a result. The impact can last up to an hour. Gymnema sylvestre is a taste modulator that prevents sucrose and other sugars from triggering the tongue's sweet receptors. It also effectively illustrates a few key principles of gustatory sensation in a dramatic, trustworthy, and reversible manner.
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Compared to other routes of administration, ________ is the most complicated way for a drug to enter the bloodstream.
Answers
Answer: the answer is oral consumption
Compared to other routes of administration, oral consumption is the most complicated way for a drug to enter the bloodstream.
How many ways can drugs enter the bloodstream?Substances can enter the body in different ways. Drugs can be smoked, inhaled, injected, swallowed (tablets, capsules, liquids), or applied transdermally (applied to the skin). Most of the drugs are taken orally and broken down in the gastrointestinal tract. Once the drug arrives, it is broken down by stomach acid before passing through the liver and into the bloodstream. Medicines can be taken in a variety of ways, including swallowing, inhaling, absorbing through the skin, and injecting. Each method has advantages and disadvantages, and not all methods can be used with all drugs. After the tablet is swallowed, it is usually absorbed through the stomach wall into the blood. These take effect within minutes, but usually take 1-2 hours to reach peak blood levels.To learn more about medication, refer
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The characteristic of a nerve cell that relates directly to its function in receiving and
transmitting nerve impulses is its
a. long extensions.
c. ability to change shape.
b. flat shape.
d. ability to engulf and destroy bacteria.
Answers
The axon is the long cytoplasmic extension and the dendrons are the short cytoplasmic extensions. The extensions are responsible for receiving and the transmission of the nerve impulses. Thus, the correct answer is option A. Hope it's helpful to you !
Explanation:
to be identified as primates, fossils must show what primate trends in anatomy?
Answers
Fossils must exhibit the following primate trends in anatomy to be identified as primates:
1. Forward-facing eyes: Primates have forward-facing eyes that provide binocular vision, allowing for depth perception and improved hand-eye coordination.
2. Grasping hands and feet: Primates typically have hands and feet with opposable thumbs and/or big toes, which enable grasping and manipulation of objects.
3. Nails instead of claws: Primates possess nails instead of claws on their digits. Nails are flatter and allow for more precise handling of objects.
4. Increased brain size: Primates, compared to other mammals, tend to have relatively larger brains in proportion to their body size. This is associated with greater cognitive abilities.
5. Reduced reliance on the sense of smell: Primates typically have a reduced reliance on the sense of smell compared to other mammals. Their vision and touch senses are often more developed.
6. Generalized dental pattern: Primates commonly exhibit a dental formula of 2-1-2-3 in both their upper and lower jaws. This pattern includes incisors, canines, premolars, and molars.
These anatomical trends help distinguish primates from other mammals and are characteristic features of the primate order.
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What is a simple definition of the white smoker? and how is it different from the black smoker?
Answers
Answer:
“Black smokers” are chimneys formed from deposits of iron sulfide, which is black. “White smokers” are chimneys formed from deposits of barium, calcium, and silicon, which are white. A venting black smoker emits jets of particle-laden fluids.
Explanation:
What are 3 stages of mitosis?
Answers
Explanation:
prophase,metaphase,anaphase, and telophase
What is the main reason that succession is important in maintaining ecosystems?
A) Succession allows the earth to change.
B) Succession ultimately leads to climax communities, which are stable and sustainable.
C) Succession keeps pollution from harming ecosystems.
D) Succession allows simple organisms to play a larger role in ecosystems than normal.
E) Succession helps species to evolve and adapt well to their environment.
Answers
Answer:
B
Explanation:
......succession is a major factor we need to create great communities they need to be stable and have effort in them maintain stable enough so all of the resources in that community can last them a long time
if the f2 flies mate randomly what are the expected phenotypic proportions of flies in f3
Answers
Mendelian genetics is a field of study in biology that deals with the inheritance of traits from parents to offspring. Gregor Mendel, an Austrian monk, first described the principles of inheritance in 1865 through his experiments with pea plants. In his experiments, Mendel studied seven traits in pea plants and showed that these traits are inherited in a predictable manner.
Explanation:
When two flies mate randomly, the offspring produced will have a combination of the genes of both parents. This combination of genes determines the phenotype of the offspring, which is the physical expression of the genes.
In the F2 (second filial) generation, we can expect different phenotypic proportions in the offspring based on the genes inherited from the parents. For example, if a fly with the dominant gene for a particular trait mates with a fly with the recessive gene for the same trait, the offspring will show a phenotype that reflects the dominant gene. In this case, the phenotype of the offspring will be the same as the phenotype of the dominant parent.
If we consider a trait that is controlled by a single gene with two alleles, one dominant (A) and one recessive (a), we can calculate the expected phenotypic proportions in the F3 generation by using a Punnett square. A Punnett square is a diagram that shows the possible combinations of alleles in the offspring from a cross between two parents.
In a Punnett square, we place the alleles of one parent along the top and the alleles of the other parent along the side. The boxes in the middle of the square represent the possible offspring.
For example, if two heterozygous flies (Aa) mate, the offspring will have a 50% chance of inheriting the dominant allele (A) and a 50% chance of inheriting the recessive allele (a). The Punnett square for this cross would look like this:
A a
A Aa
a Aa
So, in the F3 generation, we would expect 50% of the offspring to be homozygous dominant (AA), 25% to be heterozygous (Aa), and 25% to be homozygous recessive (aa). These proportions are the expected phenotypic proportions in the F3 generation if the flies mate randomly.
In conclusion, the expected phenotypic proportions in the F3 generation can be predicted by understanding the genes inherited from the parents and calculating the possible combinations of alleles in the offspring.
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Where dose mass of a willow tree come from
Answers
Answer:
So where does the mass come from? The mass of a tree is primarily carbon. The carbon comes from carbon dioxide used during photosynthesis. During photosynthesis, plants convert the sun's energy into chemical energy which is captured within the bonds of carbon molecules built from atmospheric carbon dioxide and water.
Explanation:
Hope it helps! Correct me if I am wrong :>
Im sure about my answer :>
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explain how science uses fossil evidence to support the theory of evolution
Answers
Answer:
they compare fossils to other fossils to see if skeleton changes are observed in a species over time it indicates that there is genetic change going on within the species
Answer:
Science uses fossil evidence to support evolution theories because you can link similar fossils among creatures from millions of years ago, to the living creatures of today.
hope this helps :}
What are the three types of ecological pyramids? Explain how each type of pyramid
models energy and matter in ecosystems.
Answers
Answer: The three types of ecological pyramids include the pyramid of number, which shows the number of individual organisms that exist at different trophic levels; the pyramid of biomass, which tell us the amount of living tissue or the total mass of organisms within each trophic level; and the pyramid of energy, which indicates the amount of energy at each trophic level and the actual role of each organisms in the process of energy transfer.
The three types of the ecological pyramid are-
the pyramid of numberthe pyramid of biomassthe pyramid of energyEcological pyramids show the different amounts of energy or matter present within each trophic level in a particular food chain or food web. The three different types are Pyramids of energy, biomass, and numbers.
The pyramid of number - represents the number of individual organisms that exist at various trophic levels;The pyramid of biomass- the amount of living tissue or the total mass of organisms within each trophic levelThe pyramid of energy - a graphical representation of the energy found within the trophic levels of an ecosystem.Thus, the correct answer is - Pyramids of energy, biomass, and numbers.
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If 1 orca whale eats 78 salmon, 1 salmon 16 eats herring, 1 herring eats 38
zooplankton, 1 zooplankton eats 13 phytoplankton and the phytoplankton
each have 4 DDT, what would be the concentration of DDT for the orca
whale?
Answers
Therefore, the concentration of DDT in the orca whale's body would be approximately 3,533 DDT/kg.
Using the given information, we can calculate the total number of phytoplankton consumed by a single orca whale:
1 orca whale eats 78 salmon
1 salmon eats 16 herring
1 herring eats 38 zooplankton
1 zooplankton eats 13 phytoplankton
Therefore, 1 orca whale eats:
78 salmon × 16 herring/salmon × 38 zooplankton/herring × 13 phytoplankton/zooplankton = 4,858,688 phytoplankton
Since each phytoplankton has 4 DDT, the total amount of DDT consumed by the orca whale would be:
4,858,688 phytoplankton × 4 DDT/phytoplankton = 19,434,752 DDT
Assuming that the body weight of an orca whale is 5,500 kg and that all the DDT consumed by the whale is distributed uniformly in its body, we can calculate the concentration of DDT in the whale's body:
Concentration of DDT in the whale's body = 19,434,752 DDT / 5,500 kg = 3,533 DDT/kg
Therefore, the concentration of DDT in the orca whale's body would be approximately 3,533 DDT/kg.
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Territorial animals like spiders that fight off intruders would be expected to be _______. a. regularly distributed b. randomly distributed c. clustered together d. b and c
Answers
Answer:A
Explanation:
I took test on edge. and it was right
Territorial animals like spiders should be distributed regularly. If they clustered close, they may all die at once and lose territory. So, they're regularly disseminated to battle predators and intruders and protect their territory.
Why do animals defend their territory?Territorial behavior is adapted in many different ways; for example, it may allow an animal to mate without being interrupted or to rear its young in an area where there will be little competition for food. Both of these things are adaptive. In addition to this, it can minimize overcrowding by preserving the ideal space between individuals within a community.
It is reasonable to anticipate that territorial animals such as spiders will routinely distribute themselves. They had to do this in order to protect their area because if they huddled together, there was a greater chance that they would all perish at the same time, which would result in the loss of territory. As a result, in order to prevent this from happening, they are routinely dispersed, and they are able to defend their region against invaders and predators.
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A person has eaten the following vegetables over the past week: carrots, pinto beans, corn, cauliflower, coleslaw, and potatoes. Which of the following vegetables should he eat to be sure that he has included vegetables from each of the subgroups for the week? a. Iceberg lettuce b. Green peas c. Broccoli d. Eggplant e. Mushrooms
Answers
Answer:
B
Explanation:
Green Peas
Answer:
Green plants broccoli Eggplant
Which substance is associated with immunosuppression in shock? A. Glycogen B. Cortisol C. Renin D. Antidiuretic hormone.
Answers
D. Antidiuretic hormone.
Cortisol is a substance is associated with immunosuppression in shock. Option (B) is correct.
Cortisol is a hormone produced by the adrenal glands in response to stress. During shock, the body undergoes a significant stress response,
leading to the release of cortisol. Cortisol plays a crucial role in regulating the immune system. However, in high levels, it can have immunosuppressive effects.
During shock, cortisol levels rise as part of the body's stress response. High levels of cortisol can suppress the immune system, inhibiting immune cell function and reducing the body's ability to mount an effective immune response. This immunosuppression can leave the individual more susceptible to infections and impair the body's ability to fight against pathogens.
It's important to note that while cortisol has important regulatory functions in the body, excessive or prolonged elevation due to conditions like shock can have negative effects on the immune system.
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The effect of high blood ph (alkalosis) on the respiratory centers in the brain is/are?
Answers
Answer:
Whenever the blood's acid-base equilibrium is affected by increasing quantities of carbon dioxide, pulmonary alkalosis results. People who have fast, uncontrolled breathing regularly face it (hyperventilation). Treatments that reduce the chance of hyperventilation are a component of the therapy. Alkalosis leads to cerebral vasoconstriction, which as a result decreases the brain's processing power and likely contributes to misperceiving and misreading. Hyperventilation is a subsequent disease to respiratory alkalosis. The most common causes of hyperventilation include shocks like hypoxia, metabolic acidosis, discomfort, stress, or a rise in metabolic demand. The body mostly uses the lungs to make up for both acidosis and alkalosis. When we breathe, the lungs let a certain amount of carbon dioxide leave, which alters the overall alkalinity of our blood. Additionally, the kidneys contribute by regulating the release of bicarbonate ions.
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Lipids commonly contain fatty acids. What are the two parts of a fatty acid? Check the correct answers below.
amino group
long chain of carbon and hydrogen
carboxyl group
R group
nucleotide
Answers
Answer:
b) long chain of carbon and hydrogen
c) carboxyl group
Explanation:
Answer:
B and C
Explanation:
Edg 2022
on a submarine expedition to the ocean bottom, you discover a population of fish that are only female. what type of reproduction does this fish most likely use?
Answers
Answer:
asexual reproduction/parthenogenesis
Explanation:
Parthenogenesis is a type of asexual reproduction occuring in animals where an embryo develops from an unfertilized cell. Typically this means the female is only passing on her genetic information so she will only produce female offspring.
Natural effects that cause global warming
Answers
Natural effects that contribute to global warming include changes in the Earth's orbit and tilt, volcanic activity, and solar radiation. These natural factors can lead to variations in the amount of heat and light that reach the Earth's surface.
For example, changes in the Earth's orbit and tilt can alter the amount of solar radiation received by different regions of the planet. Volcanic eruptions can release large amounts of carbon dioxide and other greenhouse gases into the atmosphere, contributing to the warming effect.
However, while natural factors have historically played a role in the Earth's climate, the current rate of global warming is largely attributed to human activities such as burning fossil fuels and deforestation, which are rapidly increasing the levels of greenhouse gases in the atmosphere.
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PLEASE SOLVE QUICKKKK BEST ANSWER BRAINLIEST!!!!!! 2) What impact do decomposers have on the movement of
matter through the ecosystem?
1. They make their own food by using energy from the Sun.
2. They recycle nutrients into the soil so that other
organisms can use them to grow.
3. c They eat other animals in order to
get
the
energy they
need to survive.
4. They survive by eating only the plant matter that uses the
Sun to make energy.
Answers
Answer:
c
Explanation:
i am pretty sure djdjfjfjf
Answer:
2. They recycle nutrients into the soil so that other organisms can use them to grow
Explanation:
A decomposing body will nutrients like nitrogen so that plants can grow.
Discuss the difference between Permutation and Combination.
Answers
Permutation refers to the arrangement of objects in a specific order, while combination refers to the selection of objects without considering their order.
Permutation involves arranging objects in a specific order, considering the arrangement of each object. For example, if we have three objects A, B, and C, the permutations would include ABC, ACB, BAC, BCA, CAB, and CBA. The order of the objects is important in permutations.
On the other hand, combination involves selecting objects without considering their order. It focuses on the selection of a subset of objects from a larger set. Using the same example, the combinations would include ABC, AB, AC, BC, A, B, and C. The order of the objects is not important in combinations.
In summary, permutation deals with the arrangement of objects in a specific order, while combination deals with the selection of objects without considering their order.
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Using a Periodic Table, identify two elements
that would have the same number of energy
levels as Aluminum (Al).
Answers
Answer:
Na, Si, Mg.
Explanation:
SodiumSilicon Magnesiumwhich of the following events does NOT happen during endochondral ossification? a. Osteoblasts replace the calcified cartilage with early spongy bone. b. Mesenchymal cells differentiate into osteoblasts. c. Osteoclasts form a medullary cavity. d. Secondary ossification centers develop.
Answers
The correct answer is a. Osteoblasts replace the calcified cartilage with early spongy bone.
During endochondral ossification, which is the process of bone formation in the developing skeleton, several events occur. These include mesenchymal cells differentiating into osteoblasts, osteoclasts forming a medullary cavity, and the development of secondary ossification centers. However, in endochondral ossification, it is not osteoblasts that directly replace the calcified cartilage with early spongy bone. Instead, osteoblasts lay down new bone tissue on the surface of the cartilage model, gradually replacing the cartilage with bone. This process results in the formation of a primary ossification center and the eventual conversion of the cartilage model into a bony structure.
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buffalo's behaviors and characteristics
Answers
it is the answer of buffalo behaviour
Which best describes an adaptation that could be found in a fish that lives in a slow-flowing stream?
the ability to attract prey by glowing
extra gills, for oxygen extraction
O the ability to grow larger
extra fat, for warmth
Answers
Answer:
My best guess is B!!! Sorry if im wrong!!!
Explanation:
Hope this help!! <3
Which of the following is an example of a biotic limiting factor in an ecosystem?
New predators move into the ecosystem
A drought occurs for several months.
A hurricane passes through an ecosystem.
Living space is lost due to human activities.
Answers
Answer:
New predators move into the ecosystem
Explanation:
A limiting factor is anything that constrains a population size and slows or stops it from growing,so when predators move into the ecosystem they compete with other organisms for resources