Answer:
option B is correct
Explanation:
the effect of external physical factor on cell division is clearly seen on in density dependent inhibition( a phenomenon in which crowded cell stop dividing)
To make sure we don't get germs and get sick
<h3><u>Answer;</u></h3>
has 6 legs/has 8 legs
has wings/does not have wings
has one pair of wings/has two pairs of wings
<h3><u>Explanation</u>;</h3>
- Dichotomous keys are biological keys which are sets of statements that act as clues leading to the identification of an organism.
- Dichotomous key is a biological tool for identification of unknown organisms.
- A single characteristic is considered at a time. Two contrasting statements are put forward to describe the characteristics in such a way as to separate the organisms, which continues until the organisms have been identified.
Answer:
As soon as you cut or scrape skin anywhere on your body, special blood cells called platelets spring into action. Platelets stick together like glue at the cut, forming a clot. This clot is like a protective bandage over your cut that keeps more blood and other fluids from flowing out.
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Answer:
Water levels and mineral salts in the blood are controlled to protect animal cells by stopping too much water from entering or leaving them. The concentration of water and salts is the same inside and outside of the cells. If body cells lose or gain too much water by osmosis, they do not function efficiently.