Explain why it is important that scientists only test one independent variable at a time in an experiment.

Which enzymes serve as catalysts in metabolism?

Which of the following is not learned from studying fossils? If an animal ate meat or plants How species changed in the past How large extinct animals were, at one time What types of species will evolve in the future

What is the 4 classes of macromolecules

Which is a function of the central nervous system? a. pumping blood through the body b. controlling coordination in the body c. fighting bacteria that enter the body d. breaking down carbohydrates in the body

The nucleus is what during phase 2

Plant leaf is an organ that traps light energy to make food. in what way is an animal stomach similar to a plant leaf.

is the fluid portion of a blood sample that has been drawn in the presence of an anticoagulant compound.

A common laboratory test that involves a sample of blood drawn by a phlebotomist is

What is the human genome project

Three types of organisms are listed below. Which of these organisms is made up of one or more cells that carry out functions to sustain life?