Exam 21: The Origin and Evolutionary History of Life

arrow
  • Select Tags
search iconSearch Question
flashcardsStudy Flashcards
  • Select Tags
Match the period with the corresponding biological events.
Premises:
Gymnosperms common, large dinosaurs
Responses:
Devonian 488 mya
Quaternary 2.6 mya
Carboniferous 359 mya
Correct Answer:
Verified
Premises:
Responses:
Gymnosperms common, large dinosaurs
Devonian 488 mya
Free
(Matching)
4.8/5
(31)
Correct Answer:
Verified

Describe the four requirements for chemical evolution and why each was essential.

Free
(Essay)
4.8/5
(44)
Correct Answer:
Verified

Concepts to Consider: Little or no free oxygen; a source of energy; chemical building blocks including water, dissolved inorganic minerals, and gases; plenty of time

Which theory states that eukaryotic organelles originated as prokaryotes that survived ingestion by a host cell and ultimately evolved mutualistic relationships with the host cell?

Free
(Multiple Choice)
4.9/5
(35)
Correct Answer:
Verified

A

One of the most significant steps in the evolution of true cells from macromolecular assemblages was the evolution of:

(Multiple Choice)
4.8/5
(36)

A significant reduction in the amount of which gas would allow more ultraviolet radiation to reach Earth's surface?

(Multiple Choice)
4.8/5
(37)

Which scientist worked on the concept of simple organic molecules?

(Multiple Choice)
4.9/5
(30)

The first photosynthetic organisms to obtain hydrogen by splitting water were the cyanobacteria.

(True/False)
4.9/5
(44)

The Holocene epoch marks the appearance of:

(Multiple Choice)
4.7/5
(35)

Which hypothesis states that life developed from nonliving matter?

(Multiple Choice)
4.8/5
(41)

Which period of Earth represents when evolution was progressing at the most rapid rate, as evidenced by fossils such as those of the Burgess Shale?

(Multiple Choice)
4.8/5
(34)

Mitochondria and chloroplasts have their own circular DNA and translational components.

(True/False)
5.0/5
(45)

Which of the following statements is true?

(Multiple Choice)
4.8/5
(42)

What feature of a dinosaur determines whether it is a saurischian or an ornithischian dinosaur?

(Multiple Choice)
4.9/5
(42)

Presently, it is thought that organic polymers may have formed and accumulated on:

(Multiple Choice)
4.9/5
(43)

What are the protobionts produced by abiotically produced polypeptides?

(Multiple Choice)
4.8/5
(34)

The first cells were most likely heterotrophic anaerobes because:

(Multiple Choice)
4.7/5
(31)

What kind of organisms likely perished due to the increase of oxygen in the atmosphere three billion years ago?

(Multiple Choice)
4.9/5
(42)

Describe the distinguishing organisms and major biological events associated with the following geological time units. A. Paleozoic era B. Cenozoic era

(Essay)
4.7/5
(39)

Provide at least two types of evidence that support the hypothesis of endosymbiosis.

(Essay)
4.8/5
(28)
Match the period with the corresponding biological events.
Premises:
Extinction of large mammals; age of Homo sapiens
Responses:
Quaternary 2.6 mya
Carboniferous 359 mya
Devonian 488 mya
Correct Answer:
Verified
Premises:
Responses:
Extinction of large mammals; age of Homo sapiens
Quaternary 2.6 mya
(Matching)
4.8/5
(41)
Showing 1 - 20 of 71
close modal

Filters

  • Essay(0)
  • Multiple Choice(0)
  • Short Answer(0)
  • True False(0)
  • Matching(0)