In a food chain, which trophic level contains the greatest amount of energy? A. herbivores B. carnivores C. producers D. decomposers

The gravitational strength at the poles is greater than the gravitational strength at the equator. What will happen to an object when it moves from the poles to the equator? A. Its mass will increase. B. Its mass will decrease. C.

Which of the following is not true concerning the flow of energy through an ecosystem? a. Most solar energy is used in photosynthesis. b. Photosynthesis and cellular respiration are performed by plants. c.

Assume you inoculated 100 cells, with a generation time of 20 minutes, into 100 ml of nutrient broth. You then inoculated 100 cells of the same species into 200 ml of nutrient broth.

In which order did the events forming our solar system occur? The solar nebula became hot and dense pulling in more gas. This flattened into a rotating disk. It spun faster and faster, forming the Sun.

Plant cells make their own food by taking in

Match the following with their proper definitions. biomass a property capable of causing changes in matter a carbon-based fuel derived from living matter that existed in prehistoric times the energy of a moving object 2. energy 3.

25. The sodium-potassium pump a. increase the concentration of sodium ions inside a cell. b. decreases the concentration of sodium ions inside a cell. c. increases the concentration of potassium ions inside a cell. d. both (b) and (c)

What effect do you think increasing the number of protein carriers would have on the glucose transport rate?

When in the presence of sugar, yeast perform which process a. an aerobic process that occurs in cytoplasm b. an aerobic process that produces alcohol c. an anarobic process that produces lactic acid d. an anearobic processthat has co2 as a byproduct

Which of the following is best definition of technology A. The most recent electronic devices, B. Practical applications of scientific knowledge, C. The pursuit of scientific knowledge, D. The scientific process