Answer: This is a positive feedback loop.
Explanation:
The protein digestion in the body is an example of the positive feedback. The gastric secretions is stimulated chiefly by the action of three chemicals.
These chemicals are acetylcholine, histamin and gastrin. These chemicals stimulate the parietal cells to secrete HCL and intrinsic factors.
The chief cells secrete pepsinogen in response to the gastrin and ACh. As the dietary proteins are digested, it breaks down the amino acids and peptides.
This stimulates the G cells of the stomach to secrete more gastrin. This is how the positive feedback loop for the protein digestion works.
Answer: Meiosis is a phase in sexually reproductive organisms, wherein cell-division takes place. It is of great importance, because it creates genetic diversity in the population.
Explanation:
<span>Actually the people with diseases such as hiv or aids are stigmatized when compared to diseases like cancer, because the main reason is that ie, the general mindset of most people regarding hiv/aids which has formed over long period of time, which is lot and lot negative mouth pubilicity more commonly which is notat fully true and another main reason most peoples think that it spreads to them easily even through outside contact with that person.</span>
Answer:
forest fires
Explanation:
An environmental change that occurs quickly and affects organisms immediately (causing behavioral adaptations).
floods, forest fires, blizzards, volcanic eruptions,
The answer to the question stated above is: letter C.Traits acquired during a lifetime are not passed on to offspring.
>Lamark had doubts too. He cited the animal's neck as an example. He said that animal's neck<span> could get a bit longer when its owner often stretched it, trying to reach higher leaves in the trees for example. But, t</span>hat's actually not stretching. The truth was too far beyond belief.
However, merely because a physical change has been achieved by an individual, it doesn't mean that those changes can be inherited by their descendants.
