All species are either ____________ or ______________.

a. extant; extinct
b. vertebrates; arthropods
c. endangered; threatened
d. higher; lower
e. in a phylum; not in a phylum


Ans: a. extant; extinct

Biology & Microbiology

You might also like to view...

Homologous chromosomes undergo recombination during

a. prophase II. b. metaphase I. c. metaphase II. d. both prophase I and II. e. prophase I.

Biology & Microbiology

____ strips an area of vegetation and soil, creating an ecological dead zone

a. Biological magnification b. Renewable energy c. Ecological restoration d. Ground mining e. Surface mining

Biology & Microbiology

Distinct layers in the soil that are created by localized chemical and physical processes are called ________

Fill in the blank(s) with correct word

Biology & Microbiology

Which of the following are safety concerns when weight training?

What will be an ideal response?

Biology & Microbiology