The red blood cell count is kept stable despite production of new cells by what?

blood loss

cell division

programmed cell death

cell differentiation

1. Complete the following chart for each of the following macromolecules. Molecule Elements Monomers Description Carbohydrates Function Examples Lipids Proteins Nucleic Acids

Lilly is exceedingly concerned about her weight. She thinks that her hips are unusually wide and that people secretly make fun of her appearance.

This organelle synthesizes proteins.

Which of the following is a major difference between viruses and living things? A. Living things contain genetic information in the form of nucleic acids, whereas viruses do not contain any genetic material. B.

How is energy from sunlight used to make sugar molecules?

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.