Unlike the cell membrane, the cell wall is A) a rigid structure B) composed of a lipid bilayer C) found in all organisms D) selectively permeable

The earths energy budget A. describes the quantities of natural resources available B. describes the balance of energy that arrives at and then leaves earth C. describes how much money is spent on energy D.

A biologist counts the number of zebras in a population each year, and notices an increase in the zebra population. Which describes the biologist's actions? graphing inference observation interacting

DNA is made up of many smaller molecules called ___. a) chromosomes b) phosphates c) nucleus acids d) nucleotides

Select all that apply. which characteristics do archaea and bacteria have in common? -both can live in extreme environments -both are prokaryotes -both reproduce mostly by binary fission -both are relatively young organisms

In two or more complete sentences, describe one type of water erosion.

Why are a variety of instruments needed to measure change in the climate system?

Give three examples of stimuli that your sensory receptors are responding

Which statement describes the Mercali scale check all that apply

Which of the following accurately summarizes the process of photosynthesis?

When did photosynthesis first occur?