Which organisms are considered predators and scavengers? Check all that apply.
What are the three main weapons of predators?
The three main weapons of predators are claws, jaws, and teeth.
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Identify the type of symbiosis described. The saguaro cactus provides food for the white-winged dove through its large fruit. The bird consumes the fruit, ingests the seeds, and then deposits the seeds in a new location.
Describe the invasion of wild parsnip, including the harm it causes.
Wild parsnip is an invasive species originally from Europe and Asia that has successfully spread throughout the entire state of Wisconsin. It reproduces very rapidly, which helps it take over native habitats. The plant is hazardous to humans because its sap contains chemicals that can cause severe skin burns upon exposure to sunlight. Management of the plant includes removing it at the root or using a powered brush cutter for larger populations.
Identify the type of symbiosis described. The brown-headed cowbirds lay eggs in other birds’ nests. They trick the birds into raising their young. The cowbirds hatch first and push the eggs out of the nest. The cowbirds are then fed by the nest-builder.
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