Answer: base substitutions, deletions and insertions
Answer:
There are advantages and disadvantages of sexual reproduction, compared to asexual reproduction. The main issues are: Advantages: More variation assists with survival. It increases the chance that at least some offspring of a parent survive.
It measures the total amount of Carbon dioxide
and Methane
Answer:
the lungs take in oxygen into the body and the blood distributes oxygen to cells throughout the body
Answer:
Peristalsis is the involuntary movement of the muscles that move food through the digestive system.
Explanation:
- Peristalsis is a reflex response.
- It is initiated when the gut wall is stretched by the contents of the lumen.
- Peristalsis occurs in all parts of the gastrointestinal tract from esophagus to the rectum.
- It actually refers to the ringlike contraction of the circular smooth muscle that move progressively forward pushing the bolus.
- It involves coordinated contraction and relaxation above and below the food bolus so that the bolus is pushed forward instead of being pushed back.
