Choose the true statements about the diversity of Darwin's finches on the Galápagos Islands. Check all that apply.A) All of the finch species share a common ancestor that colonized the islands.B) Prior to the adaptive radiation of finches, there were no unoccupied habitats in the Galápagos Islands.C) Competition among finches for food sources led to character displacement of beak shapes.D) Beak shape is not an important key innovation.
What will be an ideal response?
A, C
Biology & Microbiology
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How are the spores of zygomycetes such as Rhizopus dispersed?
A. by the wind B. by insects C. by the rain D. by swimming with flagella E. by animals
Biology & Microbiology
The Precambrian supereon, in which life first appeared and diversified to multicellular eukaryotes, lasted approximately ___ of the geologic timescale.
A. 50% B. 30% C. 15% D. 85% E. None of the answer choices is correct.
Biology & Microbiology
The alleles that control which A, B blood group antigens appear on the surfaces of red blood cells are
A) incompletely dominant. B) variably expressed. C) codominant. D) semidominant.
Biology & Microbiology
Match the following prefixes with their relationship to the standard base unit (g, m, L):
Milli A) 1/100 B) 1/1,000,000 C) 1000 D) 1/1000
Biology & Microbiology