Which of the following best describes daily temperatures in deserts?
a hot during the day and cold at night
b. hot during the day and warm at night
c. cool during the day and very cold at night
d. they depend upon the type of desert and its location

Maria wanted to grow a fern in her backyard. acting on a suggestion from a friend, she collected brown dots from the underside of a fern's leaves and then potted them. after a few days, maria saw small fern leaves erupting from the pot. which statement explains this phenomenon? a. the fern transitioned from gametophyte generation to sporophyte generation. b. the fern grew as a result of mitosis. c. the fern transitioned from sporophyte generation to gametophyte generation. d. the fern grew to be genetically identical to its parent plant.

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

What is the problem in this article? what solution does the article propose?