When you go outside, it is common to hear a variety of bird songs. These songs vary among bird species as well as bird flocks. Interestingly, some bird species that are highly unrelated have very similar song qualities
What can you conclude from this phenomenon? A) The bird songs are homologous traits.
B) The bird songs have achieved speciation after coming from allopatric species.
C) The bird songs are analogous traits.
D) The bird songs have different molecular DNA.
C
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A. EMS B. Nitrous acid C. 5BU D. 2-amino purine E. Acridine dyes
Which of the following describes the vascular system of a typical plant? I) It is made up of xylem and phloem. II) It provides support. III) It transports nutrients throughout the plant
A) I B) I and II C) I and III D) I, II, and III
Which of the following is an INCORRECT pairing?
A. viruses; acellular parasites B. fungi; cell walls C. protozoa; multicellular D. prokaryotes; no nuclei
The source pool for an island can be
A. the mainland. B. another island. C. secondary succession. D. the mainland or another island. E. density transition.