If you remove the foxes out of the food web, which population would experience the greatest impact?

a) the snake population

b) the frog population

c) the grasshoppers

d) the population of grass

e) the rabbit population

Why are echinoderms found only in marine environments?

If a plant cell is placed in a solution and the cell shrivels up, what type of solution was it placed in? How do you know?

What do valleys on the surface of a planet or moon suggest about previous land features? A. the presence of human life forms B. the presence of water C. the presence of earthquakes D. the constant bombardment of asteroids

How is the worlds food produced

Which is not a property of compounds? A. There represented by a formula B. They can be formed and separated by chemical changes C. When element combine to form compounds they lose there original identities D.

A judgment formed, based on the data gathered in an experiment is an?

You are in a desert on a hot day and see water in the distance. It's not really there, but results from refraction of light.

Dna contains all the information a cell needs in order to make certain proteins. where are the protein-synthesizing instructions stored on a dna molecule?

What summarises the outcome of Redi's experiment?

The Cat Has Fleas. The Cat Is A ___. 1. parasite 2. mimic 3. host 4. predator