The greatest cause of extinction of species is

a. runoff.
b. habitat loss.
c. invasive species.
d. evapotranspiration.


c

Biology & Microbiology

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List the three major steps in the development of angiosperms.

What will be an ideal response?

Biology & Microbiology

Select the correct sequence of animal developmental events

a. fertilization ? cleavage ? gastrula ? blastula b. fertilization ? cleavage ? blastula ? gastrula c. fertilization ? blastula ? cleavage ? gastrula d. fertilization ? gastrula ? blastula ? cleavage e. fertilization ? blastula ? gastrula ? cleavage

Biology & Microbiology

Atoms or clusters of atoms that are covalently bonded to carbon and influence the behavior of organic compounds are

known as ____. a. ions b. anhydrides c. antioxidants d. acids e. functional groups

Biology & Microbiology

1st law of thermodynamics

What will be an ideal response?

Biology & Microbiology