Acouple is visiting the clinic because they have been unable to conceive a baby after 3 years of frequent coitus. the nurse determines that the couple needs further instruction when they identify which factor as a cause of male infertility?

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form

The spermists believed that: the male made the only hereditary contribution to the offspring the male and female traits were blended in the offspring the female made the only hereditary contribution to the offspring the male and the female made equal contributions to the next generation

What tool do geneticists use to predict the outcome of genetic crosses? a.karyotype b.punnett square c.centrifuge