C. they are the same species and have different traits
Answer: Cell dependent antibody responses; cell-mediated immune responses
Explanation: We know that this is an immune deficiency, so it has to do with something in the immune system and its immune cells. The cells of the immune system help to make sure things travel safely as well as the antibodies they produce.
The answer is D- the bacterium cannot reproduce
Answer:
different assessments of environmental factors
Explanation:
In humans, for predicting the future phenotype of any individual, the PSR is used.
A trait may be defined as the state of a character that is a distinct variation of the phenotypic characteristic of any organism.
The following factors contributes to the differences in the complex trait risk predictions in the different laboratories :
-- differing methods of the combining risk from the multiple genetic variants.
-- genotyping of the different variants.
-- selection of the different genetic variants for such risk determination.
Thus the factor which does not contribute is :
"different assessments of the environmental factors."
