A species of barnacle is transported by boat to a new port, where it begins to colonize boats and piers. If the species begins to outcompete other species and cause harm, then it would be considered a____________________ introduced species.

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


Right answer summary: accidentally

Environmental & Atmospheric Sciences

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National censuses reveal a drop in a nation's growth rate that occurs about 20 years before the number of persons added per year declined. This 20-year lag represents

A) new immigration policies that became law. B) a drop in the number of people reaching reproductive age. C) increased use of family planning techniques. D) social pressures to reduce family size.

Environmental & Atmospheric Sciences

A computer the size of one's fingernail used for applications, including calculators, electric typewriters, computers, industrial robots, and aircraft guidance systems is called a _________

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

What type of feature is represented by the boundary between geologic units 3 and 4?



A) Cleavage
B) Unconformity
C) Anticline
D) Joint

Environmental & Atmospheric Sciences

Wind arrows generally back (turn counterclockwise) across a frontal zone

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences