General Biology 2: Geologic Time Scale

Subject: Biology 2

Topic: Geologic Time Scale

Difficulty: Hard

Questions: 5

Passing Score: 70%

Which event is most closely associated with the transition that marks the END of the Paleozoic Era?

A: Rapid diversification of marine animals during the Cambrian Explosion

B: The rise of flowering plants and modern insects

C: The mass extinction event known as the “Great Dying”

D: The dominance of synapsids and sauropsids during continental drift

Which pairing of geologic time and biological development is INCORRECT?

A: Devonian Period — First forests and diversification of early land plants

B: Carboniferous Period — Vast swamp forests leading to major coal deposits

C: Silurian Period — First appearance of flowering plants (angiosperms)

D: Ordovician Period — Major diversification of marine animal life

During which time interval did BOTH the first birds and large marine reptiles like ichthyosaurs and plesiosaurs exist?

A: Triassic Period

B: Jurassic Period

C: Cretaceous Perio

D: Devonian Period

Which statement BEST reflects the correct interpretation of evolution described in the reference?

A: Individual organisms evolve new traits because they need them to survive

B: Evolution explains how life first originated on Earth

C: Evolution occurs in populations over generations as favorable traits become more common

D: Evolution prevents extinction by ensuring species adapt in time

Which sequence correctly orders these Cenozoic epochs from OLDEST to MOST RECENT?

A: Miocene → Oligocene → Pliocene → Pleistocene

B: Oligocene → Miocene → Pliocene → Pleistocene

C: Paleocene → Eocene → Oligocene → Miocene

D: Eocene → Paleocene → Miocene → Pliocene

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