B, the others are not testable under lab conditions.
Answer:
A duck's foot is webbed and the chicken's foot is not
Explanation:
The difference is due to apoptosis.Ducks have webbed feet because the cells between their toes do not undergo apoptosis
The answer is A because the subject is responding to something that is going on outside of it, if that makes any sense :)
Hope this helps! Have a great day!
The answer is true! Hope this helped! :)
A divide is the elevated boundary between areas that are drained by different rivers system
