92 sathe best for the question 11. most animals and plants reproduce sexually. this means that dna is passed down to new organisms from two parental organisms. which of the following is a key advantage of sexual reproduction?

Genetic Variation

Explanation:

The main advantage of sexual reproduction is genetic variation. Sexual reproduction is synonymous to fertilization which is the uniuon of a male and a female gamete. Each gamete carries genetic information from its source (mother/father), and when they go through sexual reproduction, the gametes will produce an off-spring that carries both genetic information. As a result, the off-spring will contain a different genetic make up as the parents.

they float because they are less dense than the water itself

something denser than water, like a rock, will sink to the bottom

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."