Answer:
C
Explanation:
Without crossing over, each chromosome would be either maternal or paternal, greatly reducing the number of possible genetic combinations, which would greatly reduce the amount of genetic variation between related individuals and within a species.
Choice #1 & Choice#4 I believe
Answer:
the cell would not be able to produce vacuoles
The fossil record shows that life found on earth before was much different from life found on earth today.
C. Microscope
They were able to get magnification like never before
