Answer: peristalsis
Explanation:it's the contraction and relaxation of muscles as the bolus moves down the oesophagus
Answer: i’m sorry but where is the Answers
Explanation:
To control,maintain a rate or speed
Answer:
gene pool? species?
Explanation:
Question is a bit vague hope this helped tho :(
Answer:
What was the first hominid ancestor?
The first early hominid from Africa, the Taung child, as it was known, was a juvenile member of Australopithecus africanus, a species that lived one million to two million years ago, though at the time skeptical scientists said the chimpanzee-size braincase was too small for a hominid.