The difference between a nucleoside and a nucleotide is that the nucleotide has one or more groups attached to the sugar and the nucleoside does not.

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird

Plants need carbon dioxide from their environment to produce glucose during which stage of photosynthesis?

Tay-sachs disease is a human genetic abnormality that results in cells accumulating and becoming clogged with very large, complex, undigested lipids. which cellular organelle must be involved in this condition?