What is a base?

A. a substance that has a low pH value

B. a substance that can accept an OH-ion

C. a substance that is alkaline

D. a substance that can donate an H+ion

How can energy be harnessed

State one reason why a flu vaccine does not protect against measles

Example of an isotonic solution

Which process moves water molecules across the membrane of a cell? A) diffusion B) endocytosis C) exocytosis D) osmosis

When two amino acid monomers are positioned so that the carboxyl group of one is adjacent to the amino group of the other, they can be joined through a dehydration reaction?

1 What is the structure enters and leaves that regulates what the cell?

Sharks and their relatives are the first group of animals with jaws. why are jaws a significant evoluntionary development

True (bubble A) or False (bubble B) : Mutations caused by UV light will favor mutations that cause changes to protect the cell from UV light

Cartilage is part of the skeletal system. True False

Which is made up of organic molecules? copper electrical wires plastic storage containers table salt antacid