Earth's mantle is

A) a layer of molten metal

B) a layer of hot rock

C) a layer of rock that forms Earth's outer skin

D) a dence ball of solid metal

Which of these factors would limit the population of a species? large food supply small number of predators large amount of space substantial amount of predators

What is the importance DNA in the human body

Describe the roles of ADP and ATP in the transfer and use of energy in cells. precise a short

How does a low protein intake affect homeostasis

What is an example of macro evolution?

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