Which of the following is a possible future milestone in environmental policy? a.
water pollution policy
b.
implementation of a cap and dividend policy
c.
mandatory environmental assessments
d.
environmental impact statements

This is on E2020.

Crossing over creates new combinations of genes in the gametes that are not found in either parent contributing to genetic diversity

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.

It is called the medulla oblongata or people usually call it medulla. it is the lower half of the brain stem continuous with the spinal cord. 

The answer is d i think