Together the esophagus, stomach, and intestines are part of a what?

What is the process that wind follows to create energy?

How is plant cell cytokinesis different from animal cell cytokinesis?

We often imply that multicellular organisms are more advanced (and therefore more successful) than unicellular or colonial organisms. explain why this is not true, using examples from this lab or elsewhere.

What is the full name for DNA

Why was the advent of the amniotic egg so important in the evolution of terrestrial vertebrates?

Explain how a trait might seem to "disappear" for a generation, and then "reappear" in the following generation

What neurotransmitter is released by the axon of a sympathetic preganglionic neuron to communicate with the sympathetic postganglionic neuron?

Is the spinal cord part of the peripheral nervous system?

How many protons and neutrons does sulfur-35 have?

What is the smallest, most basic unit of life?