Which of the following is the smallest single component of a typical soil?

Gases

Minerals

Moisture

Organic material

Which of the following factors would not contribute to allopatric speciation? A) The isolated population is exposed to different selection pressures than the ancestral population.

Which statement is true for both photosynthesis and cellular respiration They require oxygen as a reactant They require organelles. They require light energy from the sun. They require cells to use water

Some types of bacteria can reproduce every 20 minutes under ideal conditions. If a single bacterium begins to reproduce at this rate, what is the best estimate of how many bacterial cells there will be after 80 minutes? 8 16 40 80

Where do ice sheets form

Flowering plant whose seeds are in an ovary when mature

Which would be the most reliable source if you wanted to learn about pollution caused by coal-fired power plants?

Definition: The number of individual organisms of a particular species in a group.

Is granite countertop a mixture or compound?

Sex-linked disorders appear more often in males because the Y chromosome

The first stage in the formation of coal is peat anthracite bituminous coal lignite