Chromosomes are made of protein & a long, single, tightly-coiled DNA molecule. During the S phase of interphase, the DNA, which makes up the chromosome makes copies of itself. Each half of the chromosome is called a , which is held together by a centromere.

In which squares should the phrase "green pods" appear a) a and d b) b and e c)a,c, and d d)a,b,c,d and e

Which statement describes how favorable traits in a population relate to natural selection? they are the only traits that ever exist in the population. they build in the population over time. they are rarely passed on to offspring. they are found only in a few individuals within the population.

Can an organism fill more than one trophic level?