Explain how the amount of available energy changes as energy moves up a food chain.

In an earthworm nerve impulse transmission experiment, students were asked to test the inhibitory effects of some unknown compounds. Upon the addition the students observed that there was no action potential generation at all.

If a mutation occurs in a gamete, which of the following is most likely to result? If the mutation occurs on a recessive gene, it will most likely be expressed.

Which of the following statements about the Sun is true? A The Sun orbits a nearby star called Alpha Centauri. B The Sun is made up mostly of helium and carbon dioxide. C The Sun rotates about its axis at a predictable rate.

The nurse has just completed teaching a client about acyanotic congenital heart disease. the nurse determines that teaching was effective when the client states the blood is shunted where to which part of the body?

Why are lobsters scavengers in the ocean?

Which statement best describes the relationship between activation energy and rate of reaction? O Increasing the activation energy can increase the rate of a reaction. O Reducing the activation energy can increase the rate of a reaction.

Definition: this is a haploid cell with half the reproductive information from the parent.

Does a cell use energy when molecules diffuse in or out of the cell? Why?

Below is a list of possible challenges. Check all errors that you mentioned in your answer. Traits other than beak type might affect natural selection. It could take many generations to observe adaptions to a population.

A farmer dug a well but did not find any water Which reasons most likely explain why the farmer did not find water? Check all that apply.