Introduced species are those species that have been brought to an ecosystem as the result of human actions. How do some introduced species affect biodiversity?

A) They decrease biodiversity because they are not adapted to surviving in the new ecosystem.
B) They increase biodiversity and have little impact on the ecosystem's food web.
C) They decrease biodiversity by preying on endangered organisms.
D) They increase biodiversity over time by always making the ecosystem more suitable for native species


Ans: C) They decrease biodiversity by preying on endangered organisms.

Biology & Microbiology

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a. competition from mammals b. a natural global cooling cycle c. an asteroid impact d. disease

Biology & Microbiology

In order to make Monday-morning staff meetings bearable, you and your colleagues take turns picking a theme for breakfast, and everyone who wants to eat is required to bring a dish that fits the chosen theme. This week, it’s your turn to choose, and you decide that it would be nice to have interesting jams and jellies for the inevitable bagels, so you pick “fruit spreads.” On Monday morning, three of your more sarcastic colleagues show up with bottles of ketchup, mustard, and pickle relish. Which of these technically qualifies as fruit spreads?

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Biology & Microbiology

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Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology