Good question vary good question but I think the blood never mix because One of the placenta's jobs is to make sure blood from the mother and fetus never mixes. The placenta acts as an exchange surface between the mother and the fetus. Nutrients and oxygen are passed over by diffusion only. If the mother's and fetus's blood mixed, it could be deadly for both of them. I hope I helped you and am sorry if it’s too late I just ate to much sugar it is like 11 at the night but still I helped you and that’s good. Good luck
Answer:
The correct answer is C (to show how difficult the task was and how important the solutions would be)
Explanation:
Took it already and the person who responded first is wrong,
Pea Plants had very similar characteristics to human beings when it came to genetics.
The process in which the plant's prepare there food in the presence of light is called photosynthesis. the respiration in which the breake down of sugars into a form which cell can use as a energy is called cellular respiration.