ECOLOGY
ORGANISMS AND THE ENVIRONMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Fish would grow larger than usual
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Zooplankton would increase
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Plants would increase in size and decrease in number
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The plant populations would be reduced
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Detailed explanation-1: -Copper compounds are used in large amounts to control the growth of algae and other aquatic plants. Copper interferes with photosynthesis in these organisms. What would be the most likely result of an accidental spill of these compounds in an aquatic environment? The fish would grow larger than usual.
Detailed explanation-2: -Algae control with chemicals The copper inhibits the photosynthetic ability of the algae cells, and may affect the way nitrogen compounds are metabolized within the cell. Copper is sometimes combined with some herbicides to reduce standing populations of rooted plants as well as algae.
Detailed explanation-3: -The increased sediment concentration decreases the amount of light that reaches the plants. Why does a decreased rate of photosynthesis lead to a decrease in a plant population? Less water is available for absorption. Less tissue is available for plant growth.
Detailed explanation-4: -Which statement best explains why biodiversity in the Baltic Sea could decrease if these changes occur? Plants and animals adapted for living in saltwater will grow more slowly in water that has less salt.
Detailed explanation-5: -The first organisms to appear in areas of primary succession are often mosses or lichens. These organisms are known as pioneer species because they are the first species present; pioneer species must be hardy and strong, just like human pioneers.