What three reasons show that aquarium 1 has the most stable ecosystem? 1)
aquatic plants 400g
fish that eat plants 40g
fish that eat fish 4g
bacteria .001g

2)
aquatic plants .1g
fish that eat plants 4g
fish that eat fish 40g
bacteria 400g

3)
aquatic plants .1g
fish that eat plants 4g
fish that eat fish 40g

4)
aquatic plants 400g
fish that eat plants 40g
fish that eat fish 4g

The hypothesis of continental drift states that earth's continents, which are located on tectonic plates, move relative to each other. which of the following is true of the movement of the tectonic plates? a. tectonic plates only move once every million years. b. they move at a rate of approximately 5 centimeters per year. c. tectonic plates never move, only the continents located on them do. d. their movements are very rapid and occur at random times.

Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection

Facilitates growth and change in neurons and the migration of neurons to different sites in the brain