How does the proofreading mechanisms in viruses affect the frequency of the mutations a virus typically undergoes?

"do a testcross with a homozygous recessive plant."

the correct answer is b

black

lasagna

lunch

math

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg