Because RNA molecules can take on a great variety of shapes, some RNA molecules actually behave like _2_and can _3_

the correct answer should be false

{apex}

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

more words for this could be abiotic and biotic

abiotic: living organisms within an ecosystem

biotic: non-living organisms within an ecosystem

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.