Answer:
I say it is making proteins using instructions from DNA
Explanation:
i hope it helps
Compare and contrast negative and positive feedback loops. Which one is more common? Why?
Answer:
Negative Feedback LoopsA negative feedback mechanism or loop is a pathway stimulated by the deviation in the output, which causes changes in output to the direction opposite to the initial deviation.The negative feedback mechanism moves the variable factors towards the stable state or homeostasis after the control unit interprets the extent of the deviation.Negative feedback loops are more common than positive ones as they tend to stabilize the system.The loop detects the change in output and acts in the opposite direction to nullify the stimulus causing the change.These loops are activated under two conditions; when the value of the variable is above the normal value and has to be brought down and when the value of the variable is below the normal values and has to be brought up.Negative feedback mechanisms occur as a part of homeostasis to bring the variables back to their normal levels by counteracting the stimulus, causing the deviation in the first place.Like in a positive feedback mechanism, a negative feedback mechanism also contains different components that together help to maintain a stable state.Examples of Negative Feedback Mechanism
1. Regulation of blood glucose level
2. Temperature regulation
Positive Feedback LoopA positive feedback mechanism, as the name suggests, is a pathway that in response to a deviation in the output causes the output to change even more in the direction of the initial deviation.A positive feedback mechanism amplifies the deviations and brings state changes to the output.Positive feedback mechanisms are far less common than negative feedback mechanisms as it moves the body away from homeostasis.The process of positive feedback mechanism progressively amplifies the response as long as the stimulus is continued.The positive feedback loop can consist of either a single component that activates its own activity or several components with direct and indirect interactions.Positive feedback loops in biological processes are often observed in processes that need to occur quickly and towards completion as the output tends to increase the effect of the stimulus.Positive mechanisms are very few within living systems like the human body, but these can also be observed in the ecosystem, like in the case of ripening of fruit.Examples of Positive Feedback Mechanism
1. Menstrual cycle
2. Childbirth
Negative feedback loops are more common than positive ones as they tend to stabilize the system.
Positive Feedback vs Negative Feedback (8 Key Differences)Definition
The positive feedback mechanism is a pathway that in response to a deviation in the output causes the output to change even more in the direction of the initial deviation. A negative feedback mechanism or loop is a pathway stimulated by the deviation in the output, which causes changes in output to the direction opposite to the initial deviation.Effect on the homeostasis
A positive feedback mechanism breaks down the homeostasis system of the body. A negative feedback mechanism works to maintain the conditions of homeostasis in the body.Occurrence
The positive feedback mechanism is less common and occurs in specific situations.The negative feedback mechanism is more common and occurs in different organs and systems in the body.Stability
The positive feedback mechanism is less stable.The negative feedback mechanism is more stable.Effect
In a system with a positive feedback mechanism, the effective input is increased by the addition of actual input with the feedback signal.In a system with a negative feedback mechanism, the effective input is decreased as the feedback signal inhibits the actual input.External interruption
A positive feedback mechanism might require an external interruption.A negative feedback mechanism doesn’t require an external interruption.Changes
Positive loops enhances the change in physiological factors.Negative loops resists changes in physiological factors.Examples
Positive feedback mechanism in nature is observed during childbirth in humans and during the ripening of fruits. The negative feedback mechanism is observed during thermoregulation and maintaining the blood glucose level.When looking through the spectrascope, the sunlight looks like ?
A:rainbow
B:red light
C:green light
Answer:
i believe it is a
Explanation:
why is the process of cellular respiration important to living organisms?
Answer:
to respire
Explanation:
To continue livelyhood we should respire
Based on the passage, ecosystems with high biodiversity are typically
А
cold and dry
B
sunny and warm.
с
free of bacteria and fungi.
D
inhabited by only a few species.
Answer:
Biome is another name for a distinct type of ecosystem. Biomes are characterized by their climate, which determines the particular plants found there. The climate and the plants in a biome determine what animals live there. This article addresses the climate and biodiversity of one of Earth’s most diverse and iconic biomes: the tropical rainforest.
Explanation:
__1. Where do FSH and LH get released from?
a. Pituitary Gland c. Uterus
b. Ovaries d. testes
_______2. Which hormones are produced in the ovaries?
a. testosterone c. FSH
b. estrogen and progesterone d. LH
_______3. Which hormones causes release of progesterone?
a. testosterone c. estrogen
b. FSH d. LH
_______4. What do estrogen and progesterone do in the menstrual cycle?
a. they stimulate the release of egg
b. they are involved in egg maturation in the ovaries
c. they are involved in maintaining the uterus lining
d. none of the above
_______5. Which of the following is/are the role of testosterone in males?
I. Pre -natal development of male genitalia
II. Maintenance of sex drive
III. Increase in mental development
a. II only c. II & III only
b. I & II only d. I, II, & III
Answer:
1.testes
2.estrogen
3.LH
4.(b)
An oil mining company has started drilling oil offshore at a location. Thus far, it has benefitted the people by increasing employment opportunities in the area. Predict the most likely outcome the oil mine will have on the environment?
It will cause drying up of water in plants.
It will emit radiation which destroys plants.
It will produce greenhouse gases which pollutes soil.
It will contaminate the soil and water in the ocean.
Answer:
It will contaminate the soil and water in the ocean.
Explanation:
This is because the oil drilling will cause oil spillage on the soil and water in the ocean. The oil spillage will cover the oil and it will not allow plant to grow there. Any crops planted there will not grow because it had release chemical and act as covering which cannot support plant growth. When it is washed into the ocean or water bodies, it can lead to death if aquatic live because it will affect the amount of oxygen that will available to them.
Answer:
It will contaminate the soil and water in the ocean.
Explanation:
Points earned on this question: 3 ;)
-
Question 2
What is the ultimate renewable resources on the planet?
Biodiversity
Marine Diversity
Ecodiversity
Ocean Diversity
Answer:
Biodiversity
Explanation:
Biodiversity or also called biological diversity is the variation among life on Earth. It encompasses all life form on Earth including plants, animal, microbes etc.
According to the question, bodiversity is the ultimate source of renewable energy on Earth. It is renewable because life has the ability to reproduce, and the greater the reproduction, the higher the probability tibd
Know how to calculate the amount of chromosomes in mitotic cells and in gamete cells, when given an amount of the chromosome number for one of the two types of cells. For example, a fruit fly has 8 chromosomes or 4 pairs of chromosomes in its wing cells, how many chromosomes will be in each egg cell?
Answer:
4 chromosomes
Explanation:
Meiosis is a kind of cell division that produces daughter cells that already have their chromosome number reduced by half. Due to this reason, meiosis is called a reduction division. A diploid parent cell (2n) will produce gametes with haploid cells (n).
According to this question, a fruit fly has 8 chromosomes or 4 pairs of chromosomes in its wing cells, after undergoing meiotic division, it will possess 4 chromosomes in each gamete cell. Note that the chromosome number has been reduced by half.
Name two types of climate clues that support the continental drift hypothesis
Answer:
•Alfred Wegener gathered evidence that the continents had moved around on Earth's surface
.
•The evidence for continental drift included the fit of the continents; the distribution of ancient fossils, rocks, and mountain ranges; and the locations of ancient climate zones.
Identify the interaction described.
One species benefits and the
other species is neither harmed nor helped.
Both species benefit.
One species benefits and the
other species is harmed.
DONE
Answer:
1. Commensalism
2. Mutualism
3. Parasitism
Explanation:
Edge 2021
Answer parasitism commensalism mutualism
Part 1
1. commensalism
2.mutualism
3.parasitism
Part 2
1.mutualism
2.parasitism
3. commensalism
YW
What occurs during the process of gas exchange?
Answer:
During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs.
3 functions of lipids
What is aerobic respiration?
c the process cells use ti
It is possible for a repressor to negatively regulate the expression of an operon because: A. the repressor-binding site overlaps the promoter site of the operon, allowing it to physically block the binding of RNA polymerase. B. the repressor induces the expression of the inducer by binding to the promoter that comes before the inducer gene. C. the repressor-binding site on the DNA overlaps with the translation start site, thereby preventing the transcription. D. one of the structural genes expressed in the operon negatively regulates the repressor. E. the repressor physically blocks where the activator should be binding on the operator region.
Answer:
A.
Explanation:
the repressor-binding site overlaps the promoter site of the operon, allowing it to physically block the binding of RNA polymerase.
is cc heterozygous or homogeneous?
Answer:
cc is homoozygous i think
Explanation:
PLEASE LOOK AT PICTURE
For a certain breed of cat, short tails are dominant (T) and long tails are
recessive (t). The Punnett square below shows a cross between two parents.
What is the phenotype ratio for this cross?
O A. O long, 4 short
O B. 4 long, 0 short
C. 2 long, 2 short
D. 3 long, 1 short
The phenotype ratio for this crosse accurate solution is -
The phenotypic ratio for this move is 3:1 (quick tail: lengthy-tail).
As in step with the statistics withinside the question, the quick tail of a cat (depicted via way of means of T allele) is a dominant trait over lengthy tails of cat (depicted via way of means of t allele), that is a recessive allele.A dominant trait continually masks the expression of a recessive trait.There may be a feasible genotypes for quick tails, which are 'TT' and 'Tt'.On the opposite hand, there may be the handiest one feasible genotype for lengthy tail, that is 'tt'.What is phenotype?
The term "phenotype" refers back to the observable bodily residences of an organism; those encompass the organism's appearance, development, and behavior. An organism's phenotype is decided via way of means of its genotype, that's the set of genes the organism carries, in addition to via way of means of environmental affects upon those genes.
Thus, from the given move, we will finish that the phenotypic ratio, representing the bodily look of the tail that is brief and lengthy tails is 3:1 (quick tails: lengthy tails).
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A population of squirrels eats acorns from local oak trees. In some years, oak trees produce much greater
numbers of acorns than usual.
Which of the following is the most direct effect of an increase of acorns on the squirrel population?
Answers
A The population has fewer predators.
B The population size increases.
C The population expands its territory into new habitats.
D The population size decrease due to competition.
Answer:
B
Explanation:
The population size increases
A population of squirrels eats acorns from local oak trees. In some years, oak trees produce much greater numbers of acorns than usual. The most direct effect of an increase in acorns on the squirrel population would be: the population size would increase, which is option B.
When there is an abundance of acorns, the squirrel population can benefit from a readily available food source. With more food available, squirrels are better able to meet their nutritional needs and reproduce successfully. This leads to an increase in the population size as more squirrels are born and survive due to the abundance of resources.
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why is it important for the body to maintain homeostasis?
Answer: it's important for the body to maintain homeostasis because, they maintain optimal conditions for enzyme action throughout your body!
Explanation:
Write a 3-5 sentence-paragraph stating the importance of electricity in our daily life.
What is the difference between a predator and a parasite?
a) A predator has a lengthy relationship with its prey
b) A parasite does not immediately kill its host.
c) A predator does not immediately kill its prey.
d) A parasite has a brief relationship with its host.
The correct answer is b). A parasite does not immediately kill its host.
What is the difference between a predator and a parasite?
Predators are species that obtain energy by stealing it from other organisms, just like parasites do. Consequently, we have a relationship where one creature (the predator) benefits while the other organism suffers (the prey).
Because they only consume resources from one host, parasites differ from predators in that they do not consume a large number of prey. Schistosoma mansoni, a trematode parasite, is an excellent illustration of this. One human host is all that an adult schistosome parasite needs to survive. It won't ever slither out and infect another person.
Hence, the correct option b.
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Which statements correctly describe greenhouse gases?
Answer:
1. Greenhouse gases absorb all kinds of radiation that fall on them
2. Greenhouse gases are released when the suns rays hit earth
3. Greenhouse gases allow the suns rays to pass through
4. Greenhouse gases absorb infrared radiation from earth’s surface
does anyone know any of these answers??!
Answer:
free ponts how kind of you
Explanation:
(8.9B) The picture below shows two plates colliding. Neither one can be subducted into the
mantle because they both have a density that is much lower than the mantle's density.
Folded mountains often form as a result. Which type of plate boundary would most likely
result in mountain formation?
A Convergent Boundary
B Divergent Boundary
C Transform Boundary
D None of the above
HELP ME PLEASE PLEASEE
B.divergent Boundry
i wish it will help you
What is the global temperature when greenhouse gas level is set at the highest?
Answer:
HIGH!!!!
Explanation:
Which sequence represents the order of some events in human development?
(1) zygote → sperm → tissues → egg
(2) fetus → tissues → zygote → egg
(3) zygote → tissues → organs → fetus
(4) sperm → zygote → organs → tissues
Answer:
Answer is 3. Hope this helps!
Explanation:
The sequence order zygote → tissues → organs → fetus is CORRECT (Option 3).
A zygote is a cell formed by the fusion of two germinal (gamete) cells.Tissues are groups of cells that are specialized to carry out some function.An organ is a group of tissues that work to perform specific functions.A fetus refers to the unborn offspring that develops from an animal embryo.In conclusion, the sequence order zygote → tissues → organs → fetus is CORRECT (Option 3).
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PLSS HURRY
The ice caps in the Antarctic and the Arctic
are a part of the geosphere/cryosphere/
biosphere
Four hundred beetles of the same species were sprayed with an insecticide. Several weeks later, nearly all the beetles were dead. A few, however, survived. Which statement best describes the future generations of these beetles?
Answer:
................ ....
Future generations of beetles will likely survive the insecticide if it is sprayed again because gene resistance would pass to the next generation. Hence, option D is correct.
What is gene resistance?Microbes develop defense mechanisms against the effects of antibiotics, which leads to the development of antimicrobial resistance. Microbes of all types can develop resistance. Infection-resistant fungi develop. Antiviral resistance among viruses develops.
Once a bacteria have acquired a resistance gene and incorporated it into its DNA, the bacterium can dominate other bacteria and convey the resistance gene to all of its offspring. Bacteria reproduce quickly, which amplifies resistance.
Future generations of beetles will likely survive the insecticide if it is sprayed again. Hence, option D is correct.
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Your question is incomplete, but most probably your full question was,
Four hundred beetles of the same species were sprayed with an insecticide. Several weeks later, nearly all the beetles were dead. A few, however, survived. Which statement best describes the future
generations of these beetles?
A
The surviving beetles will not pass on their favorable traits to future generations.
B
The majority of beetles in future generations will also die from the insecticide.
C
The beetles in future generations will have no immunity to the insecticide
D
The future generations of beetles will likely survive the insecticide if it is sprayed again
Farmer Jones noticed that some of his chickens grow much faster than the others. What can he use to increase the frequency of this trait in his chickens?
A. mutations
B. genetic engineering
C. DNA fingerprinting
D. selective breeding
Answer:
D. selective breeding.
Mendel chose pea plants with easy to see ___________, each of which had two forms. For example, flower color is a characteristic with two forms:purple or white.
Answer:
alleles/phenotypes
Match the types of resources with their descriptions renewable and nonrenewable or both
Solution :
1. They can be reproduced on a human timescale --- renewable resources
2. They take millions of years to form -- non renewable resources
3. They are produced naturally -- renewable resources
4. They are extracted by mining -- non renewable resources
5. Their use as an energy source is increasing because they reduce pollution -- renewable resources.
Answer:
I hope I'm right