The most common mechanism for sympatric speciation in plants is
A. polyploidy.
B. geographic isolation.
C. spontaneous mutation.
D. punctuated equilibrium.
E. disruptive selection.
A. polyploidy.
You might also like to view...
An oocyte released from a human ovary enters the oviduct as a result of _____
A) the beating action of the flagellum on the oocyte B) the force of the follicular ejection directing the oocyte into the oviduct C) the wavelike beating of cilia lining the oviduct D) movement of the oocyte through the pulsating uterus into the oviduct E) peristaltic contraction of ovarian muscles
When laser tweezers are used, the laser beam traps
A) isolated single-copy genomes. B) a single microbial cell. C) a single microbial colony on a plate. D) multiple cells of the same type.
________ is the process through which endospores are formed within a vegetative cell.
Fill in the blank(s) with the appropriate word(s).
The difference between what two pressures drives air into and out of the lungs?
A) atmospheric and intrapleural B) pulmonary venous and atmospheric C) central venous and intracoronary D) atmospheric and intra-alveolar E) intrapleural and intra-alveolar