3. If you observed a cell you have never seen before, what key features would you look for in the sample to distinguish it from other cells? What components (or lack thereof) would give you a clue regarding the identity of the cell?

Of the pollutants that form acids in the atmosphere, which is easiest to reduce? a. sulfur dioxide b. nitrogen dioxide c. ozone d. carbon monoxide

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Dna replication or repair occurs in a cell in all of thw following situations except when