Why are elements and compounds classified as pure substances?

In your own words, describe the realtionship between atp and adp

Why do scientists typically include as large a sample size as possible in their experiments?

What is something that is condensed visible form of chromatin

Can you describe the structure of an atom using complete sentences? the terms electron, proton, neutron, nucleus, mass, charge, volume, and density should be included

Because they produce ribosome subunits, one would expect to find large numbers of nucleoli in cells that synthesize

Which of these is true for bacteria because they are prokaryotic cells a - they can destroy neutrophils b - they are much smaller than lymphocytes c - they can invade macrophages d - they are much larger than killer T cells

What are some non-examples of carbohydrates

A person with type O blood can give genes a. AB. b. AO. c. BO. d. OO.

List the reasons why food chains to not send to exceed 4 links

How do organisms with small genomes, such as escherichia coli, carry out so many different biochemical reactions?