A reproductive barrier that prevents individuals from closely related species from interbreeding is an example of ________
A) a prezygotic barrier
B) allopatric speciation
C) sympatric speciation
D) geographic isolation of populations
A
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RNA-seq (whole-transcriptome sequencing) _____
a. is a new hybridization technique used in transcriptomics b. is the most common method used to identify certain cancer genes c. identifies and quantifies RNA transcripts in a sample d. is being replaced by DNA microarrays in transcriptomics e. can only identify 100 sequences at a time
Active immunity may be produced by
a) having a disease b) receiving a vaccine c) receiving gamma globulin injections d) both a and b e) both B and C are correct
How are the majority tree species responding to climate change in terms of distribution?
A) moving north B) moving south C) contracting in range D) no change in distribution
Refer to the accompanying figure. Which of these lungs would have the greatest surface area?
a. 1
b. 2
c. 3
d. 4
e. All have equal surface area.