In which atmosphere layer do humans live most of their lives?

If you had to describe the order of energy flow in an ecosystem, which of the following would you choose? a) sun à bird à worm b) eagle à rabbit à grass c) sun à alga à small fish d) grass à mouse à grasshopper

Define the following terms in your own words food chain, food web and energy pyramid

Humans are predators. true or false

What is a habitat? A: the way an animal behaves B: the place where an animal lives C: the role an animal plays D: the group of animals in an area

How do genes and proteins go together

How does the number of chromosomes in an organism's reproductive cells compare to the number of chromosomes in the organism's body cells? A. The reproductive cells have half as many chromosomes as the body cells B.

What organelles contain functioning ATP synthetase complexes in their membranes?

Which of these would have the most immediate effect on the ability of a plant cell to carry out photosynthesis? A) change in soil pH B) increasing air temperature C) reduction of light intensity D) increasing atmospheric humidity

Which planet is farthest from the sun since Pluto is no longer considered a planet?

7. A type of cell division that results in diploid cells: [meiosis / mitosis