Ascientist is trying to determine if a nucleic acid is rna what features should the molecule have? select all that apply
a) the sugar ribose
b) the base thymine
c) a single strand
d) the sugar deoxyribose

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.

flooding wildfire landslides climate change the factors listed have an immediate effect on the animal populations found in any habitat. the four factors would lead to a death. b emigration. eliminate c immigration. d mutations.