Ｉｆ ｙｏｕ ｗａ!ｎｔ ｍｅ

Ｗａｉ!ｔｉｎｇ ｆｏｒ ｙｏｕ:
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You arrive late to a biological seminar. however, just as you enter the room, you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule. immediately, you know that they are talking about a: ]

What was the land like over 500 million years ago? what was under the sea?

What are the pros and cons of transect sampling?