During a knee-jrk reflex the nerve impulse is received by the

A. thalamus.

B. brain.

C. spinal cord.

D. spinal cord then the brain.

If the body plan of an animal is considered bilaterally symmetrical,? A. The anterior and posterior ends are symmetrical B. The front and back of the body are symmetrical C. The left and right sides of the body are symmetrical

The cranium provides protection for what important organ in the body?

How do chromosomes vary in appearance?

Which is used to measure distances in degrees from the prime meridian? equator longitude altitude latitude

Which type of soil is the most porous?

What is one thing that all types of asexual reproduction have in common?

How is a dog similar to a baseball player?

What experimental evidence leads scientists to believe that only quantized electronic energy states exist in atoms?

With which atoms does carbon most frequently bond

What is a karyotype?