B. The organisms can be helped or harmed. If it is helped then it is called mutualism, because both of the organisms mutually help each other (I.e clownfish and sea anemone). The symbiosis can be harmful to the host as well and this is called parasitism(i.e dogs and fleas). There is also a third term for symbiosis which is commensalism which benefits the non host but doesn’t effect the host (I.e barnacles on whales)
Is there anyway you can elaborate a little more so I can answer it more clearly? Thanks!!
<span>If the offspring of a particular cross are 100 percent heterozygous for tallness, then the most likely genotypes of the parents are TT and tt. Let T be dominant allele and t be recessive allele. The genotypes will be: TT (dominant homozygote), Tt (heterozygote), and tt (recessive homozygote). If we cross a dominant and a recessive homozygote all of the offspring will be heterozygote: TT x tt = Tt, Tt, Tt, Tt.</span>
I believe it is variables bc it includes independent, dependent, and controls
The ultimate source is mutation.It is the only way that new alleles and genes are created.
