Since the 1800s an increase in selective breeding dogs for human desire traits has increased what can be a negative affect to selectively breeding dogs

Depending on the organism the number of in a cell may change

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: ]

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen