Before a cell divides, an exact copy of each chromosome is made by the process of
A) genetic engineering

B) replication

C) mutation

D) recombination

How is the male reproductive system different from other body systems? it isn’t necessary to vital signs. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.

In the diagram below, the northern hemisphere would be in what season at position a a. fall b. winter c. summer d. spring

What best describes the dropping height of a ball that bounces back up to a height of 45 cm