What animal has two brains?

The area where the fresh water of a river meets the salt water of the ocean is a (n)

The term "autotroph" is almost synonymous with:

In the Punnett square, F represents the fur of rabbits, with FB standing for black fur and Fb standing for white fur. Based on the Punnett square, what percentage of the offspring will have white fur?

Why girls had a period and will be pregnant?

If your observation had not been restricted to the tip of the onion root how would the results be different?

Question for 5 pints. do producers give off or take in carbon dioxide? how do you know?

This lake was formed by melting ice that came from an ancient A) ocean. B) glacier. C) ice berg. D) snow storm.

What area in the brain sets the respiratory rhythm?

Where do you expect to find thermophiles?

When scientists come to a tentative explanation about what they are investigating it is called