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Answers > BIOLOGY Help Please. Ten Points! I Realllyy Need Help!?

BIOLOGY Help Please. Ten Points! I Realllyy Need Help!?

by Liposomes on September 10, 2011

13. When one organism lives inside the body of another and both benefit, the relationship is called
A. photosynthesis.
B. permineralization.
C. mutation.
D. endosymbiosis.

22. The Miller-Urey experiment demonstrated that
A. organic molecules first could have come to Earth on a meteorite.
B. iron-sulfide bubbles may have acted as the first cell membranes.
C. liposome membranes containing organic molecules preceded true cells.
D. energy from lightning might have helped create Earth's first organic molecules.

25. During which era did the dinosaur population peak?
A. Cenozoic
B. Mesozoic
C. Paleozoic
D. Precambrian

i really need help with these so any help is much wanted and good. thanks =]

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{ 4 comments… read them below or add one }

American Atheist June 3, 2010 at 3:20 am

the first one is D, im not sure about the other two, I think the last one is C, do your own homework

David T June 3, 2010 at 3:59 am

13. D, 22. D, 25. B

†ђ!ηK †αηK² June 3, 2010 at 4:29 am

D, D, B. Check your other answer, I left short explanations there. =)

Kasey M June 3, 2010 at 5:28 am

13. D
22. A (I am not 100% sure about this one)
25. B

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