A certain structure in a cell that serves a certain purpose or function.
Answer:
what are the questions? if its open ended then someone sitting down at a bus stop is an example
Explanation:
potential energy is energy not being used that's just being stored up.
You may not have cystic fiborosis to still be a carrier of it. You would not know if you were a carrier until you have a child that is born with it.
Cell wall protects the cell from bursting or shrieking. (maintains the shape of a cell) While cell membrane regulates the entry of substances into the cell and exit from the cell wall.
Answer:
Question 17: B: They may provide evidence that Pennsylvania was once covered by warm ocean waters since most corals are presently found in these environments.
Question 14: I think the answer for this question might be A. But I'm not sure.
Question 10: D: Plates move toward each other and volcanic mountains form.
