Explain why earth is considered a closed system?

Which of the following animals generally has the lowest volume of urine production? a. a marine bony fish b. a shark inhabiting freshwater Lake Nicaragua c. a freshwater bony fish d. a salmon in fresh water e. a vampire bat

Where are bedbugs mostly found (are they in NY France, or whatever)

Who is generally given institutional responsibility for deciding if an individual researcher is properly trained to perform animal procedures, as required by law?

Why do lichens and mosses get mostly replaced by larger plant species during succession

What two things must an organism be successful at in order to pass on its genes? choosing and selecting surviving and choosing selecting and reproducing surviving and reproducing

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.