Which kinds of cells are always single-celled? eukaryotes prokaryotes

A relationship in which one organisms benefits while the other is not harmed but does not benefit either is called

What is one of the most commonly used groups of preservatives in the cosmetic, pharmaceutical, and food industries?

If two species of bacteria use glucose as an electron donor, but species a uses oxygen as the final electron acceptor and species b uses nitrate, then how much glucose would species b need to use to generate the same amount of atp as species a?

How are plant and animal foods similar and different?

At what location do the three bones of the os coxae fuse?

Which of the following correctly describes homeostasis in protists? (A) Paramecium maintain homeostasis by swelling and bursting (B) Vacuoles allow water to enter and exit the paramecium (C) Flagella allow paramecia to move through a substance (D)

List 4 observations that indicate that a chemical reaction may be taking place

Which statement describes the light reaction of photosynthesis? A. Water molecules are combined to make food. B. Air and water create energy for a plant. C. Carbon dioxide is put together with glucose. D. Water molecules are split apart.

4. Where are the two places we find receptor proteins? Inside the target cell, target cell plasma membrane Signaling cell plasma membrane, inside the target cell Signaling cell plasma membrane, ligand Target cell plasma membrane, signaling cell

What most directly causes hypertension? lack of blood flow to the heart a weakening of a blood vessel wall excessive force of blood pumping injury to heart muscle