Which skin pigment is made in the skin as a natural defense against uv radiation?

This is the state of body when opposing influences are balanced and the body remains unchanged

Mutations only occur in somatic cells. True or False?

What structure, found in plant cells, uses the process of exocytosis to remove water? A. nucleus B. contractile vacuole C. cell wall

What happens when blood glucose levels fall below normal? 1. The pancreas releases insulin. 2. The pancreas releases glucagon. 3. The pituitary gland releases insulin. 4. The pituitary gland releases glucagon.

Which organelle generates energy to power cellular activities?

What do a dinosaur and a tree have in commonA. they may have shared the matter b. they both get energy directly from the sun c. they both have the same exact DNAD. they both get their energy from plants?

Anchoveta feed on large zooplankton whereas sardines feed mainly on phytoplankton. Use this information to suggest why sardine numbers are less likely to collapse during an El Niño event.

Inflammation of the nerve root, menginges and spinal cord is the definition of which medical term?

What kind of plant produces apples

Identify some abiotic characteristics of the taiga biome