The ulna, radius, and humerus are the three bones of the arm. The elbow is formed where these bones meet. Which is another name for the elbow?

A) joint

B) tendon

C) cartilage

D) bone marrow

A lizard lies on a rock to raise its bod temperature. This is called what?

What cell organelle is responsible for breaking down sugar to produce energy? mitochondria golgi complex nucleus ribosome

What are three essential human components of athletic competition?

Which two species are more closely related: Ursus maritimus, ursus americanus or bufo americanus

Oxygen is recycled in the A nitrogen cycle B carbon cycle C none of these D water cycle

Which of the following is an example of sensors working during homeostasis? a blood volume decreasing from lack of water b the pancreas failing to release insulin c acidic blood pH disrupting cell metabolism d energy demands triggering a release of

If two organisms evolve in response to each other which evolutionary pattern is demonstrated

If there is a possibility of four different genotypes in the offspring that result from a dominant-recessive inheritance, and if the couple has four children, would they definitely have children with one expressing each genotype?

The ovaries are located in the ___ cavity.

Transport of materials into a cell against a concentration gradient, from low to high, requires A) water. B) energy. Eliminate C) osmosis. D) a passageway.