Give four categories of consumers in an ecosystem and the role that each plays
What will be an ideal response?
Consumers can be divided into primary consumers (herbivores), omnivores, secondary consumers (carnivores), higher orders of consumers, and parasites. Primary consumers "feed directly on producers." "Animals that feed on primary consumers are called secondary consumers." Each level of consumer feeds on the level before. Higher-level consumers (like humans) may be found in several levels at the same time. Parasites may become "associated with another plant or animal and feed on it over an extended period of time." Each organism has a place in the food web, and such predator-prey relationships help to keep the ecosystem in balance.
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A. living machines B. compost toilets C. primary sewage treatment D. secondary sewage treatment E. septic tanks
Which of the following is a major reason for rain forest destruction?
A) cattle ranching B) resource exploitation C) dam construction D) All of these are correct.
The ________ usually appears in conjunction with a halo
A) glory B) corona C) rainbow D) sun dog
Which statement about lateral migration is true?
A. Streams migrate opposite the direction of erosion. B. Streams migrate without regard to erosion. C. Streams migrate in the direction of erosion.