Which is the chemical equation for cellular respiration, and which statement describes the reaction? carbon dioxide + water ® glucose + oxygen + water-energy is required in the form of light. glucose + oxygen ® carbon dioxide + water-energy is produced in the form of atp. carbon dioxide + water ® glucose + oxygen + water-energy is produced in the form of atp. glucose + oxygen ® carbon dioxide + water-energy is required in the form of light.

Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.

Tropical rain forests support more species per unit area than any other terrestrial ecosystem. what is one way rain forests are important to the health of the biosphere?