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Zooplankton populations in Lake Erie and the Hudson River have declined by up to 70% since the arrival of zebra mussels because ________.
zebra mussels feed on phytoplankton, which zooplankton need as a food source
Individuals of a single species fighting over access to a limiting resource is one example of ________.
How do predation and parasitism differ?
Parasites rarely kill their host while predators kill their prey.
Decomposers and detritivores are responsible for enhancing the soil by recycling __________.
Microbes in our digestive tract that help us digest food demonstrate a(n) ________ association.
The most accurate way to represent trophic levels in a food chain graphically would be as ____________.
pyramid of energy
________ carried out research to determine the impact of zebra mussels on fish communities
Which statement is an accurate description of a keystone species?
A keystone species that is a predator controls the herbivore populations, which in turn maintains the plant populations and keeps balance.
Which statement best describes the process of ecological succession?
After a disturbance, the community goes through a somewhat predictable set of changes until reaching a final state called a climax community.
The Everglades Restoration Plan in Florida ________.
will restore natural levels of water flow by undoing numerous damming and drainage projects
Which of the following types of graphs would a scientist reference when determining the biome of an area?
Which list includes biomes in the correct order based on those that have the lowest annual rainfall to those that have the highest?
desert, grassland, temperate deciduous forest, tropical rain forest
Which of the following biomes has soil with the lowest nutrients and least organic matter?
a tropical rain forest
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