The belief that humans arose in sub-Saharan Africa and then moved out is which model of evolution?

a. classic
b. retroactive
c. multiregional
d. migratory


e. African emergence

Biology & Microbiology

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In genomic libraries:

(a) naturally and arti?cially selected plants are genetically engineered. (b) DNA fragments are stored in plasmids. (c) a virus is used to transform human cells. (d) none of the above are done.

Biology & Microbiology

The most important natural auxin is ____ acid

a. abscisic b. gibberellic c. jasmonic d. indoleacetic e. salicylic

Biology & Microbiology

In a lipid bilayer, __________ fatty acid tails face each other within the bilayer and form a region that

excludes water. a. hypertonic b. hyperosmotic c. hypotonic d. hydrophilic e. hydrophobic

Biology & Microbiology

Humans differ from other animals, such as dogs and bears because humans are macrosmatic and other animals are microsmatic

Indicate whether the statement is true or false.

Biology & Microbiology