The ability of a muscle to contract and relax is dependent on the flow of what substance in and out of the muscle cell?

If a little boy inherits the "A" allele from his mother and the "a" allele from his father, which type of the following individuals is he? A. a heterozygous individual B. a homozygous dominant individual C. a monozygous recessive individual D.

Are corals embryophytes?

If i wanted to look at a onion cell what type of microscope would be best to use

Investigators are looking into the sudden death of a popular celebrity's manager. They find DNA at the scene that does not belong to the victim. They take DNA samples of the celebrity and the rest of his staff to compare to the DNA from the scene.

Analisa conducted an experiment to determine if watching different types of commercials would affect a person's pulse. Her hypothesis was that pulse rate would change with different types of commercials.

Discuss glucose transport in epithelial cells, include tight junctions in your discussion.

What soil develops on top of there parent bedrock?

Which statement describes the life cycle of a plant? A. leaves an exoskeleton B. four distinct stages C. alternates between plants with full and plants with half the chromosomes D. pupa stage

Explain how the water cycle functions because of change in matter.

Cellulose, chitin, and peptidoglycan function as structural molecules and withstand pulling and pushing forces well. Which structural feature is most directly responsible? See section 5.3 (page 114). View available hint (s)