At the time Darwin voyaged on the HMS Beagle, the popularly accepted theory in Western culture that explained the origin of Earth's plants and animals held that the various species __________.

Fill in the blank(s) with the appropriate word(s).


Ans: had been created by divine intervention a few thousand years before

Biology & Microbiology

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Endospore-forming Gram-positive bacteria are found primarily in ________ habitats.

A. freshwater B. marine C. soil D. All of the choices are correct.

Biology & Microbiology

Genetic drift is more likely to occur in ________

a. large populations b. heterozygous populations c. any population d. homozygous populations e. small populations

Biology & Microbiology

The presence of cilia is a common feature of some

a. nervous tissues. b. muscle tissues. c. connective tissues. d. epithelial tissues. e. epithelial tissues and connective tissues.

Biology & Microbiology

Which of the following statements regarding the chemical grooming of pyruvate is false?

A) Each pyruvate loses a carbon atom, which is released as CO2. B) Two molecules of pyruvate are each converted into two-carbon molecules joined to a coenzyme A molecule. C) Two pyruvate molecules together contain less chemical energy than was found in the original glucose molecule. D) Each pyruvate molecule has a CO2 added and then joins with an NADH. E) The pyruvate molecules are oxidized and two NAD+ are reduced.

Biology & Microbiology