Changes in technology change the economic geography of a region

Indicate whether this statement is true or false.


TRUE

Biology & Microbiology

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What mechanism makes it difficult to classify bacteria into distinct species groups?

A. vertical evolution. B. horizontal gene transfer. C. sexual reproduction. D. asexual reproduction. E. low mutation rates.

Biology & Microbiology

What two types of melanin are made by

melanosomes?

a. brownish- black and yellowish b. brownish-black and reddish c. brownish-black and white-ish d. yellowish and reddish e. reddish and white-ish

Biology & Microbiology

Morphological or molecular characters shared by members of a clade are called ______

A) common ancestors B) paraphyletic groups C) homoplasys D) monophyletic groups E) synapomorphies

Biology & Microbiology

How is the stomach lining protected from the strongly acidic pH of its contents?

a. Mucous cells secrete a protective lubricant into the stomach. b. It releases a hormone called gastrin, which stops gastric juice secretion. c. Bile neutralizes the acid soon after it enters the stomach. d. Parietal cells secrete a protective buffer to neutralize hydrochloric acid. e. The acid is neutralized quickly when it combines with pepsinogen to make pepsin.

Biology & Microbiology