All nucleotides of DNA and RNA contain a a) uracil base
b) thymine base
c) ribose sugar
d) phosphate group

Microorganisms are involved in each of the following processes excepta. smog production. b. food production. c. infection. d. o2 production. e. decomposition of organic material.

The asian shore crab (hemigrapsus sanguineus) is an invasive species that has impacted the atlantic coast. predict what characteristic of this invader would most likely disrupt the biodiversity of this area.

Which image shows labeled organelles that are present only in plant cells?