Biology, 20.07.2019 06:30 gigipalacio32
Phosphorous and other chemicals are mined from earth's crust in order to manufacture products. phosphorous is used to produce fertilizers. when it rains over farmland, the excess fertilizers enter runoff. the runoff flows into rivers, lakes, and bays, where the fertilizer causes the local population of algae to increase rapidly in size. how do algae blooms impact aquatic ecosystems? a. they block light from penetrating deep within the water, thus leading to a dramatic fall in the water's temperature. b. they cause the water in the ecosystem to increase in acidity, thus killing most of the ecosystem's bacteria. c. they lead to the deoxygenation of the ecosystem, thus killing fish and other organisms in the ecosystem. d. algae blooms have little to no impact on aquatic ecosystems.
Answers: 1
Biology, 22.06.2019 13:30
What is used as a template during replication? a- mrna b- trna c- rrna d- dna
Answers: 1
Biology, 22.06.2019 16:30
Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.
Answers: 1
Biology, 22.06.2019 17:00
Your sense of touch depends upon: a. direct contact b. heat chemical c. reactions d. pain
Answers: 2
Phosphorous and other chemicals are mined from earth's crust in order to manufacture products. phosp...
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