What are the two ways that organisms on the bottom of deep sea food chains acquire energy? a.
photosynthesis and chemosynthesis
b.
chemosynthesis and marine snow
c.
marine snow and photosynthesis
d.
chemosynthesis and predation

If someone could do the first couple, just so i can see how it's done that would be great! 20 points. complete a dichotomous key for the 10 leaves on the common leaves sheet. the chart provided here allows for 11 pairs of statements. depending on how you build your dichotomous key, you may or may not need all of them, or you may need to add some.

One of the purposes of transcription is to produce a sequence of bases that

The first generation of offspring from the cross of two parents is called the a.f1 generation b.f2 generation c.short generation d.p generation