The number of organisms in a food pyramid decrease as the trophic level A) decreases. B) increases. C) stays constant. D) changes unpredictably.

No water molecules are moving across the barrier between the two compartments. a. A net movement of water molecules continues to add water to the right-hand compartment. b. None of the answer options is correct. c.

Explain definition of the day

1. which of the following list objects in space in order of increasing size. a. galaxies, solar systems, stars, planets, moons. b. asteroids, stars, planets, solar systems, galaxies. c. planets, stars, solar systems, galaxies, Universe. d.

If a line graph is a straight line, then there is a very strong relationship between the variables.

You are a genetic counselor, and a couple comes to you with concerns that if they have a child together, he or she could have hemophilia.

A bird is observed to nest along the coastline. It then spends hours out in the open ocean feeding on fish. What is this behavior called? This behavior of sea birds is termed.

A genotype is the collection of all the genes occurring in members of a species.

What is true of carbon atoms?

Is it easy for breeders to produce mutants?

What is an unusual property of magnetite?