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U4T2 - SC1.2 Radiation extinction

Authored by Sarah C

Biology

12th Grade

U4T2 - SC1.2 Radiation extinction
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17 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does 'mya' stand for in evolutionary timescales?

million years ago

million years after

many years ago

mammals years ago

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Angiosperms are:

Non-flowering plants

Flowing plants that produce flowers and seeds enclosed within a fruit

Marine animals

Reptiles

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Evolutionary radiation refers to the outward, spreading pattern of diversification from a single ancestral lineage, much like waves radiating from a source.

True

False

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When is an extinction event considered a mass extinction?

An extinction event is considered a mass extinction when more than 75% of species disappear from Earth, as identified by gaps in the global fossil record.

An extinction event is considered a mass extinction when only mammals are affected.

An extinction event is considered a mass extinction when a single species goes extinct.

An extinction event is considered a mass extinction when there is a temporary drop in population numbers.

5.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Media Image

Using the graph below, determine which mass extinctions occurred in the Palaeozoic Era

444 million years ago – (End Ordovician ‘O’ period)

375–359 million years ago – (Late Devonian ‘D’ period)

251 million years ago – (End Permian ‘P’ period)

200 million years ago – (End Triassic ‘Tr’ period)

66 million years ago – (End Cretaceous ‘C’ period)

6.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Media Image

Using the graph below, determine when mass extinctions occurred in the Mesozoic Era

444 million years ago – (End Ordovician ‘O’ period)

375–359 million years ago – (Late Devonian ‘D’ period)

251 million years ago – (End Permian ‘P’ period)

200 million years ago – (End Triassic ‘Tr’ period)

66 million years ago – (End Cretaceous ‘C’ period)

7.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Media Image

Using the graph below, determine which period had the largest total extinction rate.

444 million years ago – (End Ordovician ‘O’ period)

375–359 million years ago – (Late Devonian ‘D’ period)

251 million years ago – (End Permian ‘P’ period)

200 million years ago – (End Triassic ‘Tr’ period)

66 million years ago – (End Cretaceous ‘C’ period)

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