After Darwin concluded his voyage on the Beagle, he proposed that the process of natural selection was a mechanism for
A. evolution.
B. overpopulation of finches on the Galapagos Islands.
C. artificial selection.
D. speciation.
E. sexual selection.
Answer: A
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Match the following items with the correct phrases.
_______1. When two microorganisms occupying the same environmental niche have absolutely no effect upon each other, it is known as ____________________. _______2. Bacterial vaginosis is an example of ____________________. _______3. ____________________ is a symbiotic relationship of benefit to one of the symbionts, but neither beneficial nor harmful to the other. _______4. ____________________ is a symbiotic relationship of benefit to one of the symbionts, and detrimental to the other. _______5. A lichen is a classic example of ____________________. a. commensalism b. mutualism c. neutralism d. parasitism e. synergism
Known for the ability to dive deep, the ____ has set a record of 1530 m
a. harbor seal b. Weddel seal c. Steller's sea lion d. leopard seal e. northern elephant seal
In an individual pea plant, the visible characteristics of yellow and wrinkled seeds are the plant's ________
Fill in the blank with correct word.
All cells have a plasma membrane consisting of
What will be an ideal response?