The study of groups of organisms belonging to the same species living together is called.

Athermometer is placed in water in order to measure the water’s temperature. what would cause the liquid in the thermometer to rise?

How can you tell the difference between rough er from smooth er?

In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48