What does a fern do?

A male giraffe has 31 chromosomes in each of its sex cells. How many would be present in its body cells?

The basic unit of structure and function in the nervous system is the neuron. a. true b. false 17 Answer: The endocrine system produces chemical messengers called enzymes. a. true b.

The term for an error in which homologous chromosomes fail to separate during meiosis or mitosis is: a. aneuploidy. b. polyploidy. c. translocation. d. nondisjunction.

The nutrient that is essential for survival and accounts for 60-75% of body weight is: A. protein. B. calcium. C. water. D. fat.

What are the levels of taxonomy

Which of the following best describes a noncontact force? A. a force that is able to act at a distance B. a force that must be physically touching the object it acts on C. a force that always pulls objects backward D.

Which type of energy used on earth comes directly from the sun

Aldosterone is secreted in response to changes in: select one: a. blood potassium levels. b. blood calcium levels. c. blood pressure. d. body temperature. e. blood glucose levels

How does a mutation in dna cause a disease that affects multiple organs?

Dylan is on a strict vegan diet. He doesn't consume meat, fish, eggs, or dairy products. Which nutrient is difficult to obtain naturally from a vegan diet