Scientists divide the atmosphere into how many layers?

four

seven

five

eight

Which statement is true about cellular respiration and photosynthesis? They have the same reactants. They have the same products. The products of one are the reactants of the other. The product of one is light and the reactant of the other is ATP.

The majority of alcohol is excreted through exhalation of air in the lungs. a. True b. False

Which of these is the most likely consequence of falling petroleum prices?.

Which actions destroy topsoil? Check all that apply. 1 mowing land 2 eroding of land by wind 3 plowing land without replanting 4 overusing land 5 sowing seeds in land

How does transferring energy into a container of magnetic marbles affect the speed by shaking the container gently?

In any ecosystem, there are always more: Select one: a. Animals than plants b. Herbivores than carnivores c. Heterotrophs than autotrophs d. Predators than prey

Which biome would contain the most biodiversity in deciduous tree species? A) taiga B) savanna C) temperate forest Eliminate D) tropical rainforest

If you wanted to show all of the feeding relationships in a particular ecosystem, what type of diagram would be most effective

Bacteria, viruses, protozoa, and green algae are all microbes, but one group is much smaller in size than the rest. Which microbe is the smallest? A. a green algae cell B. a bacterium C. a protozoan D. a virus

The discovery of immense ridges and trenches stretching thousands of kilometers across the seafloor in the 1950s led to acceptance of the theory of