A species of frog slowly dies off because it cannot compete with the toads and lizards that share its ecosystem. This is an example of

One of the main problems terrestrial animals faced was that of what loss

Which statement best describes the limits of science

A mother with type A and a father with blood type B had a child who was type O. What does that tell you about the blood types of the parents?

Which of the following provides the best example of the parts of a system working together to achieve a specific function? A-Specialized cells in a plant's leaf open and close in response to changing conditions.

What are the three main types of plate boundaries?

Regions of the world with an unusually large concentration of species are called

Which of the following is a characteristic that can be applied to both living and non-living things

Nomex and kevlar are polyamides that are unusually tough and flame resistant. what structural feature makes nomex and kevlar different from other polyamides

All of the following show the probability of rolling an odd number on a 6-sided number cube except which of the following?

Blood that passes from the vena cava is deposited into which chamber of the heart