Answer:
The wave like motion of a tube.. generally oesophagus due to which, food goes down
Explanation:
peristalsis have alternative contraction and relaxation movements
Answer:
<em>D</em>
Explanation:
D is the only answer that works because it portrays the fact of boiling point and the freezing point to be 100 increments apart which is the main concept of the whole passage.
B. The genotype is Bb because of incomplete doninance
