Bettina describes herself as a lesbian and is in a long-term relationship with another woman, whom she recently married. the best biological explanation for bettina's sexual orientation is that there (select one):

a. was greater exposure to androgens while she was in the womb.
b. was an insufficient level of estrogen released during puberty.
c. is an extra y sex chromosome in her dna.
d. is inadequate functioning of her ovaries.

Determine if the following statement is true or false. if true, choose true. if false, choose the rewording that is true. according to the law of independent assortment, alleles for each gene are inherited together so that they always stay together. according to the law of independent assortment, offspring express a combination of their parents' traits. according to the law of independent assortment, alleles for a characteristic split during meiosis and combine during fertilization. true according to the law of independent assortment, alleles for each gene are inherited independently so that no two alleles stay together.

Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .

Climate warming trends allow plant and insect species to inhabit larger ranges. select the best answer from the choices provided