Ionly have 5 minutes hellpp
if greenhouse gases in the atmosphere act like a blanket around the earth, how is this "blanket” being changed by human activities?

it is getting thinner and keeping the earth cooler.
it is getting thicker and keeping the earth cooler.
it is getting thicker and keeping the earth warmer.
it is getting thinner and keeping the earth warmer.

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.

Which of these organisms have the greatest amount of cell specialized

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.