When particles move out of a cell through facilitated diffusion, the cell

A. first gains and then uses energy

B. does not use energy

C. uses energy

D. uses energy

What determines what will be tested in a scientific experimento?

The material within the cell membrane that carries out the work of the cell is the:

Which of the following occurs as water vapor cools in the atmosphere? transpiration condensation precipitation evaporation

Two cats are mated. One of the parent cats is long-haired (recessive allele). The litter which results contains two short-haired and three long-haired kittens. What does the second parent look like, and what is its genotype?

In order to retain heat, what occurs in the skin on a cold day? blood vessels of the dermis constrict. blood vessels of the dermis dilate. blood vessels of the epidermis constrict. blood vessels of the epidermis dilate.

What kind of bond exists between two amino acids in a protein? select one: a. amino b. peptide c. sulfhydroxyl d. ionic e. hydrogen next?

Which species concept defines a species as a group of organisms that are able to reproduce successfully and have fertile offspring?

When Darwin wrote on the origin of species he assumed due to the fossil record that species would not evolve quickly since that time evolutionary theorists have documented example of much more rapid evolutionary change now how would we explain the

Some gaming marketers focus on what segment of the population? none of these retirees baby boomers people in their 20s

Your family owns a bakery and has kept the same "family recipe" for bread for over 50 years. Unfortunately, customers have been complaining that your bread is too heavy and dense.