Look for patterns between inputs and food molecules. Pay attention to the atoms most present in food molecules (below left). Are they coming from air or water/fertilizer?

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale

What factors contribute to the effect an environmental toxin has on the human body?