Parapatric speciation occurs most often ____.
A. within in the same home range
B. populations inhabiting different areas while maintaining contact along a common border
C. within a group of interbreeding populations
D. on either side of geographic barriers
E. by polyploidy
Answer: B
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Which statement about bryophytes is NOT true?
a. The sporophyte is haploid. b. The sporangium produces spores. c. The sporophyte is attached to the gametophyte. d. Meiosis precedes spore formation. e. Bryophytes require water for sexual reproduction.
condition which specifically involves the formation of abnormal pouches in the wall of the GI tract, where portions of the mucosal layer have pushed through other layers
What will be an ideal response?
Exponential growth occurs
A) only in laboratory populations. B) only in theory, never in actual populations. C) frequently in natural populations. D) only for a limited time in natural populations. E) at regular intervals in natural populations.
All cells possess a cell wall
Indicate whether the statement is true or false