Which of the following would be a characteristic of an exotic plant species?

A. Produces a few seeds after many years to reach maturity
B. Has many predators and diseases
C. Is a specialist, for example, has a low range of tolerance for soil acidity
D. Is an opportunist that is desired by humans for food or ornamental value
E. Is a secondary consumer (trophic levels)


Answer: D

Environmental & Atmospheric Sciences

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How do worms help plants grow?

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The Mesozoic Era is called the “Age of Reptiles” because ____

a. there were more reptiles than any other type of animal b. reptiles were the only animals to show evolutionary change c. even though there were more plants than reptiles, plants did not evolve d. reptiles predominated the land-dwelling vertebrate animals e. reptiles dominated the oceans

Environmental & Atmospheric Sciences

Most people agree that global climate change is not a real environmental threat.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

The earliest crust is thought to be high density, unstable mafic rock. Indicate whether the statement is true or false

Environmental & Atmospheric Sciences