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What is an evolutionary tree diagram?
a nucleus
a diagram that shows evolutionary relationships between organisms
the two organisms that are farthest apart
levels of oxygen increased
65 million years ago
A massive asteroid struck Earth.
common ancestor
mammals
How was Earth's atmosphere likely affected by the development of photosynthesis?
a nucleus
a diagram that shows evolutionary relationships between organisms
the two organisms that are farthest apart
levels of oxygen increased
65 million years ago
A massive asteroid struck Earth.
common ancestor
mammals
In an evolutionary tree diagram, which two organisms are least closely related?
a nucleus
a diagram that shows evolutionary relationships between organisms
the two organisms that are farthest apart
levels of oxygen increased
65 million years ago
A massive asteroid struck Earth.
common ancestor
mammals
Two organisms branch from the same point on an evolutionary tree diagram. The point that they branch from represents a(n)
a nucleus
a diagram that shows evolutionary relationships between organisms
the two organisms that are farthest apart
levels of oxygen increased
65 million years ago
A massive asteroid struck Earth.
common ancestor
mammals
Rats and opossums are modern examples of __________, which first appeared 200 million years ago.
a nucleus
a diagram that shows evolutionary relationships between organisms
the two organisms that are farthest apart
levels of oxygen increased
65 million years ago
A massive asteroid struck Earth.
common ancestor
mammals
Prokaryotes are unicellular organisms that do not contain
a nucleus
a diagram that shows evolutionary relationships between organisms
the two organisms that are farthest apart
levels of oxygen increased
65 million years ago
A massive asteroid struck Earth.
common ancestor
mammals
When did non-avian dinosaurs become extinct?
a nucleus
a diagram that shows evolutionary relationships between organisms
the two organisms that are farthest apart
levels of oxygen increased
65 million years ago
A massive asteroid struck Earth.
common ancestor
mammals
What event likely led to the extinction of non-avian dinosaurs?
a nucleus
a diagram that shows evolutionary relationships between organisms
the two organisms that are farthest apart
levels of oxygen increased
65 million years ago
A massive asteroid struck Earth.
common ancestor
mammals
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