Biology Biology Practice Problems Solutions Library

History of Life on Earth Solutions Library

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19 solutions

History of Life on Earth

Q. Which of these would a paleontologist be most likely to do in order to determine whether a fossil represents a reptile or a mammal? A) Look for the...

Solved • May 19, 2020

History of Life on Earth

Q. Why is the discovery of the fossil Archaeopteryx significant? It supports the A) phylogenetic relatedness of birds and reptiles. B) contention that...

Solved • May 19, 2020

History of Life on Earth

Q. Which of the following are the only extant animals that descended directly from dinosaurs? A) lizards B) crocodiles C) snakes D) birds E) tuataras

Solved • May 19, 2020

History of Life on Earth

Q. For every described currently living species of organism, there are about ________ fossil species.A) 2B) 1/6C) 100D) 6E) 1/100

Solved • May 19, 2020

History of Life on Earth

Q. Recent reconstructions of evolutionary history are often dependent on assigning divergence in terms of changes in amino acid or nucleotide sequence...

Solved • May 14, 2020

History of Life on Earth

Q. This question concerns the epochs of the Cenozoic Era. Columns (B) and (C) in the answer table may be determined directly from the information in F...

Solved • May 5, 2020

History of Life on Earth

Q. Classify each event in the history of life into the appropriate eon or era. Drag each phrase to the appropriate bin. 

Solved • Apr 23, 2020

History of Life on Earth

Q. Which evidence supports the hypothesis that four-limbed animals came from fish? Select all that apply.1) DNA analysis shows that fish are tetrapods...

Solved • Apr 23, 2020

History of Life on Earth

Q. Ice cores can be used to reconstruct past climates as far back as:A. 5,000 yearsB. 50,000 yearsC. 100,000 yearsD. 400,000 years

Solved • Apr 23, 2020

History of Life on Earth

Q. Abiotic synthesis of organic molecules requires _______.a. hydrogenb. methanogenesisc. serpentinizationd. anaerobic Archaeae. all of the above.

Solved • Apr 23, 2020

History of Life on Earth

Q. The first forms of life on eart were thought to be _____.A. single-celled plantsB. prokaryotesC. insectsD. large animals such as dinosaurs

Solved • Aug 25, 2018

History of Life on Earth

Q. Which of the following is NOT a reason why fossils are especially significant in understanding the evolutionary history of insects?A. They provide ...

Solved • Jul 10, 2018

History of Life on Earth

Q. When two continents collide a(n) _____ often forms.a. chain of volcanic islandsb. ocean trenchc. mountain ranged. ocean ridge

Solved • Oct 11, 2017

History of Life on Earth

Q. The study of the movement of the earth's crust is called _____. a. paleontology b. meteorology c. plate tectonics d. driftology

Solved • Oct 11, 2017

History of Life on Earth

Q. The time period during which life arose and the first cells came into existence is the _____.a. Jurassicb. Carboniferousc. Precambriand. Paleocene

Solved • Oct 11, 2017

History of Life on Earth

Q. The primitive atmosphere had little if any _____.a. waterb. free oxygenc. carbon dioxided. nitrogen 

Solved • Oct 11, 2017

History of Life on Earth

Q. Approximately how long ago did LIFE first evolve on eartha. 4.5 billion yearsb. 3.5 billion yearsc. 1 billion yearsd. 600 million yearse. 100,000 y...

Solved • Aug 3, 2017

History of Life on Earth

Q. The oldest fossils of eukaryotes have been estimated to bea. 6000 years oldb. 8 billion years oldc. 4.5 billion years oldd. 1.5 billion years olde....

Solved • Jul 18, 2017

History of Life on Earth

Q. According to geochemists which of the following would have been the most unlikely condition on the primitive Earth?a. atmospheric coolingb. crust f...

Solved • Jul 18, 2017