Americans thought german submarine warfare was
a. ineffective.
b. unsophisticated.
c. uncivilized.
d. too restrictive.

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.

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

Cells destroy body cells infected by a virus or bacteria. killer t t memory t none of the above