A. external
These types of signals are observed when there is a cut on the body. The epidermal cells lose contact with one another and divide faster until they are in contact once again. After they come into contact, division slows down again.
Answer:
It would be B
Explanation:
By doing the punnet square, you get BB, BB ,Bb, Bb, of which 50% are heterozygous.
The correct answer is anticodon
<span>It is composed of water and other soluble ions. About 80% of the cytoplasm is water. It also contains dissolved carbohydrates, proteins and fats.
</span><span>It is a very good conductor of electricity.</span>
Why is the active site specific for only one type of substrate? Enzymes have a lock and key type fit so only a specific substrate fits in the activation site.
