Agenetic disorder that results from an abnormality in the x chromosome, which becomes constricted and often breaks, often leads to mental deficiency. this disorder is

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false