Mammals are the only vertebrates that possess:

a. teeth
b. a backbone
c. a brain
d. a four chambered heart
e. mammary glands


e

Biology & Microbiology

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Wilkins and Franklin studied the structure of DNA using ____

a. molecular scale models of nucleotides b. X-ray diffraction c. computer-assisted graphics d. electron microscopy e. light microscopy

Biology & Microbiology

Describe the function and general nature of promoters in eukaryotes

What will be an ideal response?

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Molebdenum is a cofactor for nitrogenase, which means every nitrogen-fixing microorganisms will not be able to fix nitrogen without Mo

Indicate whether the statement is true or false.

Biology & Microbiology

A person suffers a stroke. A blood clot reduced blood flow in the brain. The person is unable to say

words, but is able to read and understand text. Which of the following best explains this person's problem?

a. The cortex of the cerebellum was affected by the reduced blood flow. b. The interruption in blood flow affected the corpus callosum. c. The region of damage was responsible for integration of visual and auditory stimuli. d. The reduced blood flow damaged Wernicke's area of the temporal lobe. e. The reduced blood flow damaged Broca's area of the temporal lobe.

Biology & Microbiology