A pyramid of energy has 100 units of energy available for the first traffic level. How many units would be available for primary consumers? How did you calculate this?

Which of the following landforms are hawiian landforms?

List 2 types of bone tissue.

The mutation that causes sickle cell disease in humans is

The movement of substances through the cell membrane without the use of cellular energy

What is an advantage of sexual reproduction?

Which of the following is a false statement? a. More energy is produced as a product to be used by organisms in aerobic respiration than anaerobic. b.

Each of these four organisms began life as a single 2N cell. Cells in each organisms divided and differentiated. Probably the single most important process that ensured genetic continuity in all four organisms was DNA A) alliteration. B) replication.

If a cell that has 10 chromosomes goes through meiosis, how many chromosomes will be in each new daughter cell? A-20 B-5 C-0 D-10

What will most likely happen in an ecosystem if the population of one species grows unusually fast? A. Another species that eats the same food will decrease in population. B. The food that the species eats will start growing more quickly. C.

Why are old growth forests considered "healthy" ecosystems?