Which of the following pairs is correctly matched?
a. chloroplast?storage of enzymes
b. lysosome?powerhouse of the cell
c. centrosome?cell division
d. plastids?structural support of the cell
e. Golgi complex?production of energy
C
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In tobacco tissue culture, getting both roots and shoots to develop requires
a. an auxin-to-cytokinin ratio of 10:1. b. a higher concentration of cytokinin than auxin. c. an auxin-to-cytokinin ratio of slightly greater than 10:1. d. an intermediate auxin-to-cytokinin ratio. e. exactly equal amounts of auxin and cytokinin.
In a pedigree chart, a female showing the specific trait being studied is indicated by a ____
a. clear square b. darkened square c. clear circle d. darkened diamond e. darkened circle
Diet-induced thermogenesis
What will be an ideal response?
Phosphorus has an atomic number of 15, so what is the distribution of its electrons?
A) The first energy level has 2, the second has 8, and the third has 5. B) The first energy level has 2 and the second has 13. C) The first energy level has 8 and the second has 7. D) The first, second, and third energy levels have 5 electrons each. E) The electron arrangement cannot be determined from the atomic number alone.