Four different nucleotides are used as building blocks of dna. which of the following can be used to distinguish one nucleotide from another?

Sea stars, sea urchins, sand dollars, and brittle stars are all memeber of a group, what is the common name of the group they are all in

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

The is an estimate of the fewest number of organisms a population needs to avoid extinction. this measurement will most if the number of offspring each female in the population produces increases. if the population's this measurement will most likely increase. 1 population density, minimum viable population, carrying capacity 2 decrease, be unaffected, increase 3 death rate increase, dead rate decrease