Variations of traits within a population are the result of genetic recombination .
(a) changing
(b) diploid
(c) pre-existing

Aboy with an extra x chromosome probably has which of the following syndromes?

Ineed the answer asap. in order to be considered alive, an organism must simultaneously possess the characteristics of homeostasis, heredity, cells, reproduction, and

When is your respiration rate likely to change? a. when your intestines are digesting b. when your cells have too much glucose c. when your cells need more oxygen d. when your liver is working after a meal