What are homologous chromosomes?

How do the three different types of neurons function

What are the four requirements for a valid experiment?

Manufactured goods and products are made in a factory. Which of the following is a common manufactured good? A. fresh vegetables B. a sea sponge C. silverware D. rocks

Describe the process of embryo development from fertilization to implantation and the formation of a gastrula.

Plants obtain nitrogen from the: A. soil B. atmosphere C. water table D. respiration of animals

In order to understand the disease in Mr. Volpe's alimentary canal, one must know the layers that make up its walls.

What is an example of a molecule that would require facilitated diffusion to enter a cell?

Which part of the nervous system reacts when the human body is subjected to stress?

Explain how energy flows in a food chain. DONE

A friend tells you he read somewhere that rotting garbage can turn into maggots, which are fly larvae, and the maggots then can grow into adult flies. What part of the cell theory could you use to refute his claim?