History of Life on Earth

Quiz
•
History, Biology
•
10th Grade
•
Medium
Used 136+ times
FREE Resource
18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Which of the fossils have been found in Namibia?
Mammal-like reptiles
Early mammals
Soft-bodied animals
Glassopteris leaves
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A problem in the accuracy of radiocarbon dating is that:
scientists are not sure that radioactive decay actually occurs
the decay rate of minerals can change without warning
the rocks that contain the fossils can't be dated
the half-life of carbon-14 is relatively short, and most fossils are millions of years old
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Study the graph below which shows the major extinction events answer the questions that follow.
When did the Cenozoic era begin?
Around 65 mya, after the last major extinction.
260 mya
100 mya
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Which mass extinction took place towards the end of the Paleozoic era?
dragons
The Permian extinction.
rhinos
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain why the number of genera of organisms increased rapidly after each mass extinction. (give full answer)
The number of genera increased rapidly after each extinction event, because many genera were wiped out completely during the extinction, so their niches were left open. These niches were rapidly taken over by other genera, who diversified and formed new genera by natural selection.
because These niches were rapidly taken over by other genera, who diversified and formed new genera by natural selection.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What evidence do scientists use to show that dinosaurs once existed on Earth?
True: Fossils that were formed when the dinosaurs died, also animals like sharks, birds and crocodiles, that are closely related to dinosaurs.
false: Fossils that were formed when the dinosaurs died, also animals like sharks, birds and crocodiles, that are not closely related to dinosaurs.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How long ago did the dinosaurs become extinct?
a century ago
60 mya
Dinosaurs became extinct 65 mya.
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