A skeleton forming outside the animal's body is a (n)

a. endoskeleton.

b. exoskeleton.

c. notochord.

d. vertebrate

Which segment of the small intestine receives chyme from the stomach?

The HIV virus and the T2 bacteriophage virus HAVE this in common: A they both have RNA B they both have a membrane coat C they both have DNA D they both contain genetic material

Why are neurons so important?

Red flowers (dominant) crossed with white flowers (recessive) can yield pink flowers. Pink is the heterozygous condition in a trait that shows incomplete dominance.

Which statement about an enzyme is TRUE? 1. An enzyme is used up in chemical reactions. 2. An enzyme works on a broad range of substrates. 3. An enzyme becomes another enzyme after a reaction. 4.

How are earth's organisms and crust interdependent? read more >>?

Which technique is used to separate the different cell parts?

Where does the mitochondrial DNA originate?

Which structure of a protein is the arrangement of polypeptides? A - primary B - secondary C - tertiary D - quaternary

Describe Three functions of reproduction