HELP! I NEED THE ANSWER TO THIS QUESTION AS FAST AS POSSIBLE. Which of the following is a source of genetic variation in sexually-reproducing organisms?
A.
meiosis
B.
mitosis
C.
translation
D.
all of these

I’m stuck on this question cuz i’m stupid sksksksk

Approximately what wavelength of light is best absorbed by chlorophyll a

Ascientist is designing an investigation to study the impact of invasive bird populations on local, native bird populations at backyard bird feeders. what population is most likely to be a control group for the investigation? amount of food number of bird feeders invasive bird populations local backyard birdfeeders without food