Question

during which division of the geological timescale did the first land plants, like mosses and liverworts, emerge?
a precambrian eon
b paleozoic era
c pleistocene epoch
d mesozoic era

Explanation:

• Precambrian eon: This eon is the earliest part of Earth's history and lacks complex land plants.
• Paleozoic era: During the Paleozoic era, specifically in the Silurian period (a subdivision of the Paleozoic), the first land plants like mosses and liverworts emerged.
• Pleistocene epoch: This is part of the Quaternary period and is too recent for the first emergence of land plants.
• Mesozoic era: By the Mesozoic, there were already more complex plants (like gymnosperms were well - established), and land plants had already emerged long before.

Answer:

B. Paleozoic era