The barrier between the intracellular and extracellular fluid compartments in an animal or plant is the:
A. plasma membrane.
B. walls of capillaries.
C. nuclear membrane.
D. membrane of the endoplasmic reticulum.
E. membrane of the Golgi apparatus.
A. plasma membrane.
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Which group of terms is in the correct developmental sequence?
(a) microspore mother cell, meiosis, megaspore, female gametophyte. (b) microspore mother cell, meiosis, microspore, pollen grain. (c) megaspore, mitosis, female gametophyte, meiosis, endosperm mother cell. (d) all of the above.
Which of the following strategies of sexual reproduction will result in the most genetic diversity?
A. Sexual reproduction of homothallic species B. Sexual reproduction of heterothallic species C. Sexual reproduction via arthroconidia D. Sexual reproduction via sporangiospores
Which individual established the connection between genes, meiosis, and fertilization?
a. Gregor Mendel b. Hugo de Vries c. Carl Correns d. Erich von Tschermak e. Walter Sutton
A correct equation for photosynthesis is
A. SUN + 6O2 + 6CO2 ® C6H12O6 + 6H2O. B. SUN + C6H12O6 + 6O2 ® 6CO2 + 6H2O. C. SUN + 6CO2 + 6H2O ® C6H12O6 + 6O2. D. SUN + 6CO2 ® 6H2O + C6H12O6 + 6O2.