The development of the cell theory involved
a. different ideas from different scientists.
b. the efforts of one scientist.
c. work with computer models.
d. complete agreement among scientists.

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.

Biomass can be used to generate electricity. biomass relies heavily on agricultural crops. plants release carbon dioxide and water in combustion. plants use photosynthesis to originally generate the energy that is needed. the chemical energy of these plants all started with what energy source?

Identify the structure in organisms that do not have kidneys that is adapted to regulate water balance