C.
Every change in a species is coded within the DNA. But the bird had lost a toe an accident. So the toe-loosing-option isn't true because not every bird looses his toe.
(Example: If a women gets bitten by a snake on the arm and gets the arm removed from her body and then in a year or so has a baby with her new husband. The baby won't be born with one arm because his/her mother lost her arm.) <span />
Odd question as there is multiple types of tissue that could be tested. Is there any additional information for the question?
Most likely though, it’s epithelial tissue.
Answer:
The model appears to show the carbon dioxide molecules entering the blood cell and the oxygen molecules existing the cell.
They showed how organic molecules could be made from Earth's early atmosphere.
Answer:
yea it should be fine. I'm not sure but. it makes sense to me.
