Are enzymes used up after they do there job

Which process tends to occur more quickly natural selection or artificial selection, why do you think is so?

Which illness can be contracted by drinking contaminated water? A: botulism B: E. coli infection C: salmonellae D: gastroenteritis

The tendency for a solution of water and solutes to take up water across a selectively permeable membrane is called

When immunity to a disease is acquired naturally through a response of ones immune system it is called:?

A nurse is teaching a school-aged child with juvenile idiopathic arthritis (jia) activities to prevent the loss of joint function. what should the nurse caution the child to avoid

Pollution stays in the area where it is produced. a. True b. False

A male tree frog migrates to a new habitat with little ground vegetation and many tall trees. Jumping is the safest way for the frog to move from tree to tree.

Select the correct answer. Neurofibromatosis, a genetic disease caused by mutation on the NF1 gene, follows an autosomal dominant pattern of inheritance.

Which of the following is NOT a way a cell can increase its surface area A. decrease its volume B. add organelles C. let water out of the cell D. all of the above

Using a pH meter, you find that egg whites have a pH of nearly 8 and egg yolks have a pH near 6, if litmus paper turns blue in bases and red in acids, which part of eggs would turn litmus paper blue? A. both B. egg whites C. egg yolks D. neither