According to an article/websites, the link stated below, plankton dominates the "limnetic" zone of freshwater ecosystems, which make sense since this is the topmost layer. This is the zone that receives the most sunlight, thus the plants can photosynthesize better than those at the lower levels. Plankton will rarely be found in the lowest zone as there is little to no sunlight there. The lower in the lake/freshwater ecosystem you go, the less plankton you'll find because of their lack of ability to photosynthesize. You can refer to the website below and other books/websites like it for more in-depth information on plankton and their role in freshwater ecosystems. Hope this helps.
After cloning the Glo
gene in the puc18 plasmid of E.Cori, the
next step would be to culture the clone. While amplifying DNA requires Polymerase Chain Reaction cycles, amplifying
proteins requires the metabolic activity of <span>organisms
to utilize central dogma process and ribosome activity to produce proteins. Culturing produces many clones that synthesize
the proteins in significant amounts. </span>
B. Is correct because in mutualism both species benefit. It could be symbiosis but mutualism is more specific.
A. If there’s a loss of producers then the neither can feed an will die off
In the gene pool of population with 350 individuals a fixed allele has a frequency of 1(one). Fixed alleles is the alleles that is the only variant that exist for that gene in all population.The frequency of gene pool with a population of 350 is = 1 since the frequency of total alleles =1
