What is groundwater? water from the formation of the earth water at the bottom of oceans, lakes, and streams water in underground lakes, rivers, and streams water that has collected below the surface of the earth

Which of the following lines of evidence would best support your assertion that a particular plant is an angiosperm? a) it produces seeds. b) it retains its fertilized egg within its archaegonium. c) it lacks gametangia. d) it undergoes alternation of generations.

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above