an aquatic ecosystem was rich in benthic microalgae and sea grasses. over the years, industrial pollutants have reduced these populations considerably. how would this affect the ecosystem?
a) there would be no energy produced in the system.
b) there would be more energy available in the ecosystem.
c) it will increase the number of organisms at higher trophic levels.
eliminate
d) there would be less energy transferred to the higher trophic levels.

Choose one animal (cheetas) and research on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?