End of the
Paleozoic era
2
The dinosaurs become
common
Paleozoic era
2
95 percent of species died
out
End of the
Mesozoic era
?
Land based animals first
became common
Mesozoic era
2
Dinosaurs became
suddenly extinct

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 best describes this behavior? it is beneficial only to the males that do not fertilize eggs. it is beneficial only to the female workers that are not fertilized. it is beneficial to each one of the individual colony members. it is beneficial to the whole species, but not to all of the individual members.

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?