What do you get after two turns of the krebs cycle

Why was the sample heated in step 5? describe the chemical principles involved in the reasoning behind this step?

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 which of the following relationships is one organism always benefited while the other organism is always harmed