Which of the following is NOT part of the male reproductive parts of a flower?
A. anthers
B. microspores
C. pollen
D. sperm cells
E. ovule
E. ovule
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Guard cells control their volume, and thus size:
A. by increasing the amount of solutes such as K+ and Cl-. B. by reducing the amount of solutes such as K+ and Cl-. C. by increasing the amount of water in the cells without changing solute concentration. D. by decreasing the amount of water in the cells without changing solute concentration. E. by increasing the amount of CO2 in the cells.
The Deinococci stain Gram-positive but have a layered cell wall and an outer membrane that is more like a Gram-negative organism.
Answer the following statement true (T) or false (F)
The size range of most plant and animal cells is
A) 1–10 nm. B) 1–5 ?m. C) 10–50 ?m. D) 0.1–0.5 mm. E) 50–100 mm.
"Gain of function" mutations are generally dominant because one copy in a diploid organism is sufficient to alter the normal phenotype
Indicate whether the statement is true or false