Author Question: In the United States alone, more than 7 ________ introduced species (not counting microorganisms) ... (Read 48 times)

Pineappleeh · **on:** Aug 22, 2018

In the United States alone, more than 7 ________ introduced species (not counting microorganisms) have been documented, of which about 15 cause ecological and economic damage

A) hundred
B) thousand
C) million
D) billion
E) trillion

Question 2

Which of the following terms describes organisms living on the surface of the sea floor moving along the bottom?

A) Benthonektos
B) Epifauna
C) Infauna
D) Nektobenthos
E) Planktofauna