A substance that moves across a cell membrane

without using the cell's energy tends to move

2. An air mass entering Alaska from the northern Pacific Ocean would most likely be labeled on a weather map as

What is the relationship of photosynthesis to chloroplast?

molecule often produced by a microorganism to kill other microorganisms that might compete for the same food source? It usually works by dissipating essential electrochemical gradients in the competing organism.

A substance with ph of 6 is called? A. acid b. a base. c. water. d. a suspension

The energy-generating biochemical reactions that break down organic food molecules are what type of reactions?

A nurse is instructing a patient receiving a cholesterol-lowering agent. which information should the nurse include in the patient education?

What is the impact of a nonsence mutation? A) No effect on the protein. B) The creation of a new amino acid. C) It results in epigenetics. D) A stop codon is formed.

A stalked, sessile marine organism has several feathery feeding structures surrounding an opening through which food enters. The organism could potentially be a cnidarian, a lophophorate, a tube-dwelling worm, a crustacean, or an echinoderm.

All cells within an organism will have the same number of chromosomes except the gamete. a. True b. False

What are the steps of the food chain that includes insect-eating birds.