DNA analysis of mitochondrial and nuclear DNA from the Y chromosome supports the __________
hypothesis of the origin of the species Homo sapiens.
a. out of Africa
b. Homo erectus
c. multiregional
d. multinational
e. Asian focus
A
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The female reproductive whorl of a flower typically consists of one or more ____
a. petals b. carpels c. stamens d. receptacles e. sepals
A homing pigeon that uses landmarks to find its way back to its nest is exhibiting
A. solar navigation. B. piloting. C. true navigation. D. magnetic orientation. E. stellar navigation.
The brains of patients with Alzheimer's disease have a reduced level of
a. serotonin. b. dopamine. c. acetylcholine. d. aspartic acid. e. GABA.
The term biotechnology refers exclusively to the use of genetically engineered organisms for the production of desired products
Indicate whether the statement is true or false