Carbohydrates and fats are considered high-energy foods because they _____

A) have a lot of oxygen atoms.
B) have no nitrogen in their makeup.
C) have a lot of electrons associated with hydrogen.
D) are easily reduced.


C

Biology & Microbiology

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The geological timescale was first developed using the fossil record, but this provided only a system of relative dating; absolute dates weren't established until the discovery of ____

Fill in the blank with the appropriate word.

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Do the two DNA double helices following DNA replication have the same, or a different, composition?

a. different b. same

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Cell signaling during much of C. elegans development occurs along concentration gradients. What kind of signaling does this represent?

What will be an ideal response?

Biology & Microbiology

When gene mutations cause tumor suppressor genes to turn off, cell growth is

a) apoptosis increases b) uncontrolled and cells proliferate c) doesn't change d) suppressed more

Biology & Microbiology