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High School Biology: From the First Organism Onward (Fill in the blank)
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High School Biology: From the First Organism Onward (Fill in the blank)
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10 Questions

1. A(n) __________ is a group of organisms that includes an ancestor species and all of its descendant species.

2. The most recent era of the geologic time scale is the __________ Era.

3. Carbon-14 dating is a type of __________ dating.

4. Endosymbiotic theory explains how __________ evolved organelles.

5. The most exclusive taxon of the Linnaean system is the __________.

6. The Paleozoic Era began with a burst of new life called the __________.

7. An event in which most species on Earth abruptly go extinct is a called a(n) __________.

8. Preserved remains or traces of organisms that lived in the past are known as __________.

9. The last ice ages ended during the __________ Period.

10. Mammals became the dominant animals on Earth during the __________ Era.

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