Every time energy is transferred in an ecosystem, potential energy is lost.

A) as heat.

B) due to weather.

C) because some animals die.

D) when it is recycled back to producers.

If there is another new infectious disease somewhere in the world, what do you think Canadian officials should do

Describe the difference between aerobic and anaerobic respiration.

China is experiencing excessive air pollution due to the growing population's increased use of fossil fuels. Which of the following changes is a consequence of air pollution? A. Improved plant growth B. Decreased amount of acid rain C.

When a person is exercising, their heart rate will increase to send more blood (containing oxygen) to the muscles working in the body. After a person stops exercising, their heart rate will decrease to the normal rate.

How does importing coal contribute to pollution? a. If the U. S. did not import coal, it would have to use alternative fuel methods. b. Fuel is used to transport the coal, which contributes to pollution. c.

Un ejemplo de mitosis en el trabajo es una hoja que: A) se vuelve amarilla. B) Creciendo tomando dióxido de carbono c) Hospedar una oruga

During transpiration, water exits the leaf via the A. mycorrhiza. B. stomata. C. roots. D. tracheids.

How do you call a prokaryote kingdom that typically live in oxygenated environments, and are not as adapted to harsh environments as the other prokaryote kingdom?

Rosa has a vegetable garden. She places earthworms, which are decomposers, in the garden soil. What is Rosa most likely trying to do? A. prevent insects from eating the plants B. create usable food energy for the plants C.

A transposable element (TE), or transposon, is a __ sequence that can change its __ within a genome, sometimes creating or reversing mutations and altering the cell's __.