You are an aquatic biologist studying a small lake. the stream that drains into this lake runs by croplands. you are detecting a pesticide called atrazine in the insects and worms that live in the lake, but the predatory birds such as herons and egrets have very high concentrations of atrazine in their blood. the birds prey on the frogs and small fish. what process explains the high atrazine level in the birds?
a. antagonistic interaction
b. persistence
c. chronic effect
d. biological magnification
e. none of these answers
Answers: 2
Biology, 21.06.2019 23:30
Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries
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Biology, 22.06.2019 02:00
Which statements describe resources? one of the factors people use when deciding where they will live is the availability of resources. renewable resources have little value for people. resources are unevenly distributed throughout the world. energy is the world resource which has the highest use. the use of nonrenewable resources has decreased in recent history. the use of resources is evenly distributed throughout the world. the world's oil supply will last for the next forty years if its use continues as expected.
Answers: 3
You are an aquatic biologist studying a small lake. the stream that drains into this lake runs by cr...
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