Biology, 11.04.2020 00:14 cutielove2912
After the Aswan High Dam was built on the Nile River, the rate of parasitic blood-fluke infection doubled in the human population near the dam. As a result of building the dam, the flow of the Nile changed. This changed the habitat, which resulted in an increase in its population of a certain aquatic snail. The snails, which were infected, released larvae of the fluke. These larvae then infected humans.' This situation best illustrates that:
A. the influence of humans on a natural system is always negative in the long term
B. the influence of humans on a natural system can have unpredictable negative impacts
C. human alteration of an ecosystem does not need to be studied to avoid ecological disaster
D. human alteration of an ecosystem will cause pollution and loss of finite resources
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Biology, 22.06.2019 00:50
How does deforestation affect the water cycle? a. it increases the amount of runoff b.it increases the amount of percolation c. it increases the amount of transpiration d. it increases the amount of precipitationa it increases the amount of runoff
Answers: 1
Biology, 22.06.2019 13:00
This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient
Answers: 1
After the Aswan High Dam was built on the Nile River, the rate of parasitic blood-fluke infection do...
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