Which of the following organelles provides cells with the energy it needs to perform its tasks

A - DNA

B-protein

C - mitochondria

D - centrioles

Explain how sediments eroded by the water in this stream become smoother and rounder in shape

Which type of scientist would likely predict a tornado?

When two species exhibit different behaviors but live in the same area, what can result? a. Geographic isolation b. Founder effect c. Behavioral isolation d. Temporal isolation

Pretend you are a red blood cell. You just gave oxygen to the left biceps femoris muscle, and your next mission is to take oxygen to the right temporal lobe of the brain. Take me on the path.

In the field of science, there are still many scientists that question the process of Darwinian evolution a. True b. False

Which description is common to both gymnosperms and angiosperms?

How do adolescents behave differently than adults? Are these differences universal or learned?

Which of the following is associated with plates sliding past each other? a. rifts b. subduction zones c. faults d. all of the above

Which of the following most accurately describes the process that must occur when working with research animals covered by U. S.

Female gametophytes in angiosperms are hidden and protected. Where are they found, and what are they called?