What is a cell's main source of energy?

a. protein.

b. fat

c. Glucose

2. For each of the genotypes below determine what phenotypes would be possible. Purple flowers are dominant to white flowers. Bobtails in cats are recessive.

direct indication that the white blood cells of the body are functioning would be

Name the structure that transport food synthesized in the leaves to the different part of the plants?

What is the magnification of the ocular lens

The duct that connects the pancreas to the duodenum can sometimes become blocked. what is the result?

Two different species of birds live in the same habitat would be the same type of nesting place. As a result, both species will

Which of the following is NOT a type of synovial joint in the human body? A. pivot B. stirrup C. hinge D. gliding

What blood types are possible among the children of a cross between a man of blood-type A and a woman of blood-type B?

Which of the following is not a mechanism for biological evolution? a. Mutation b. Genetic drift c. Inheritance of acquired characteristic d. Natural selection

What factor explains why tundra biomes remain cold all year round the Taiga biomes have alternating warm and cold seasons? A. vegetation cover B. average precipitation C. altitude D. latitude