Question

which of the following statements best describes the difference between plants in the carboniferous and mesozoic eras?
a in the carboniferous, flowering plants moved from marine environments onto land.
b in the mesozoic, flowering plants blossomed for the first time.
c in the mesozoic, plants began to make seeds.
d in the carboniferous, plants began to make seeds.

Explanation:

• Option A: Flowering plants (angiosperms) did not move from marine to land in the Carboniferous. The first land plants were non - flowering (e.g., bryophytes, ferns).
• Option B: Angiosperms (flowering plants) first appeared in the Mesozoic era. This is a correct statement about plant evolution between the two eras.
• Option C: Seed - bearing plants (gymnosperms) appeared before the Mesozoic. For example, conifers (a type of gymnosperm) have a long fossil record predating the Mesozoic.
• Option D: Seed - bearing plants did not begin in the Carboniferous. Gymnosperms (e.g., Archaeopteris, a type of early seed - plant relative) have a fossil record that extends before the Carboniferous in some cases, and the Carboniferous is more known for large - scale growth of lycophytes (non - seed plants like Lepidodendron) in coal - forming swamps.

Answer:

B. In the Mesozoic, flowering plants blossomed for the first time.