The diversification of Hawaiian honeycreepers as they colonized islands in the archipelago is an example of ________ speciation
a. sympatric
b. allopatric
c. parapatric
d. allopolyploidy
b
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In mosses and fungi, the process of meiosis produces
A) egg cells. B) pollen nuclei. C) spores. D) sperm cells. E) prothalli.
Which region(s) of the adult brain is/are derived from the diencephalon?
a. cerebrum only b. thalamus only c. hypothalamus only d. cerebrum and thalamus e. thalamus and hypothalamus
Carbon-14 dating is best used for determining ages of ________
a. metamorphic rock samples 2 to 3 billion years old b. carbon-containing samples less than 100 years old c. igneous rock samples 3 to 4 billion years old d. carbon-containing samples less than 60,000 years old
Based on the function of mitochondria, what substance is able to pass through the outer membrane of the mitochondria easily?
A. Amino acids B. Sugars C. Oxygen D. Potassium ions