A major abiotic factor that affects freshwater ecosystem is

What happened to the yeast population after hour 10? why?

You see an emergency vehicle with audible and visible signals approaching from behind while you are stopped at an intersection. what should you do? a. remain stopped unless you can move over to the right without blocking the intersection. b.

Which statement best describes kudzu? It replaces trees after a forest is clear-cut. It is overharvested for a farm crop. It crowds and outcompetes native plants. It decreases oxygen in the water underneath.

The presence of which element would indicate that a star is going through a high-mass star life cycle as opposed to a low-mass star life cycle? A) hydrogen B) carbon C) helium D) iron

What word refers to traces of an organism that existed in the past?

A species displaying which of the survivorship curves is likely to produce the most offspring?

Which of the following statements is true? Parasites benefit their hosts. Parasitism causes both the parasite and host to adapt and evolve. All parasites stay with their host until the host dies.

What do gradualism and punctuated equilibrium have in common? A. They are both explanations of the rate of evolutionary change. B. They are both explanations that were put forth by Darwin. C. They both discredit the theory of evolution. D.

The human immunodeficiency viris (hiv) is a bloodborne pathogen that is spread by

A cell that is undergoing mitosis is examined with a light microscope. an observation that would allow for identification of the cell as an animal cell rather than a plant cell would be