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DE_LE_3.1_History of Life on Earth_TestBank

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Last updated 4 months ago
19 questions
Practice Assessment
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Summative Assessment
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Question 1
1.

According to the diagram, which organisms do NOT share a common ancestor?

Question 2
2.

Event A is an example of _______, and Event B is an example of ________.

Question 3
3.

This graph shows the number of living species of a taxonomic unit of organisms. Using your knowledge of the history of life on Earth, which group of organisms do you think this graph represents?

Question 4
4.

How many taxonomic units are on this evolutionary tree diagram?

Question 5
5.

When did complex animals first begin to appear?

Question 6
6.

Prokaryotes are unicellular organisms that do not contain ________.

Question 7
7.

When did arthropods first appear?

Question 8
8.

When did eukaryotes first form?

Question 9
9.

When did modern humans first appear?

Question 10
10.

In this evolutionary tree diagram, which two organisms are least closely related?

Question 11
11.

A scientist looking at animal fossils from 400 million years ago might see the first appearance of which organism?

Question 12
12.

When did multicellular life forms appear?

Question 13
13.

The codons that code for alanine in a potato beetle are the same as those that code for alanine in mackerel and humans. This evidence best supports which of the following ideas?

Question 14
14.

Why was the development of proto-amphibians so significant to life on early Earth?

Question 15
15.

Which is a reasonable statement about the asteroid impact 65 million years ago?

Question 16
16.

Why is sexual reproduction critical to the process of evolution?

Question 17
17.

A scientist claims to have found a fossil that is more than 6 billion years old. Why is the scientist’s claim false?

Question 18
18.

A global storm system lowers the average temperature of Earth by 10 degrees. Most of the organisms on Earth are wiped out. 1 million years later, Earth is once again populated by a variety of organisms. This repopulation is an example of a(n)

Question 19
19.

A scientist claims to have found fossil remains of an arthropod. The specimen has bilateral symmetry and a backbone. Why is her claim false?