What bodies of water make up a river system?

When a blood vessel is injured, which of the following is responsible for clotting? a. white blood cells b. platelets c. actin filaments d. dead bacteria actually General Science

In which part of the nephron does the filtration of blood occur

How does antiseptic prevent the spread of infection in the kitchen

What type of organism is missing from the food chain? A) An organism that would eat the bear. B) Organisms that would feed off of the flies. C) Organisms that can convert the sun's energy into a useable form of energy.

Which best describes a tetrad?

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.