A group of mussels were collected from the Arkansas River. Their lengths were measured as follows: 1in 3in, 1.5in, lin, 2.5in, 2in, lin, 2 in, 1.5in, 3.5in
What is the average length for the mussels collected?

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.