2. Energy can change forms. When it does, some energy is changed to

a form that cannot do work.

A) DNA B) motion C) heat

D) fat

Why is the brain an important component of the nervous system A. It produces nerve cells for other parts of the body B. It produces antibodies C. It produces adrenaline and other hormones D.

Which of these organisms could be chosen for a study of both photosynthesis and cellular respiration? a. a simple plant b. a chemosynthetic bacterium c. an animal that eats plants d. an animal that eats animals

Which factors affect a population's growth regardless of the population's size?

How does a mutation in a sex cell differ from a mutation in a non-sex cell? O A. Mutations in sex cells do not affect the organism. O B. Mutations in sex cells are more deadly. O C. Mutations in sex cells are silent mutations. O D.

Explain how DNA forms chromosomes in eukaryotic cells?

The mitochondria does?

In blank, one diploid cell divides and makes four haploid cells

The cellular machinery that replicates DNA inserts an incorrect base A) most of the time B) about half the time C) roughly once on every million bases D) roughly once in every 10 million generations

Proteins are important biomolecules. Proteins are synthesized and often packaged for secretion into other cells within an organism. A variety of organelles play a role in producing, packaging, and moving proteins.

Descending order arranges labels alphabetically from a to z. a. True b. False