Answer:During pregnancy, red blood cells from the unborn baby can cross into the mother's blood through the placenta. If the mother is Rh-negative, her immune system treats Rh-positive fetal cells as if they were a foreign substance. The mother's body makes antibodies against the fetal blood cells
Explanation:
Rotation is the spinning of a planet, revolution is when a planet circles the sun/planet.
Im also stuck on this im down to A and C
Explanation:
Biology of Plants: Plant Adaptations - MBGnethttps://www.mbgnet.net › bioplants › adapt
biome—a place characterized by its climate and the plants and animals that live ... Plants have adaptations to help them survive (live and grow) in different areas. ... This explains why certain plants are found in one area, but not in another
Answer:
A: An experiment is a test which will either challenge or support a hypothesis.
The point of an experiment is to <u>see</u> if your hypothesis is correct, not to prove it.
