How many chromosomes should be in an embryo nucleus?
A) 8
B) 16
C) 24
D) 32
B
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In human oogenesis, how many chromosomes does an ovum carry?
A) 22 B) 23 C) 44 D) 46 E) 92
Which statement best describes autotrophic organisms?
a. Autotrophs are exemplified by fungi. b. Autotrophs are exemplified by animals. c. Autotrophs cannot carry out cellular respiration. d. Autotrophs depend on heterotrophs for food. e. Autotrophs synthesize complex molecules from CO2, water, and energy.
The dominant stage of the moss life cycle is the
A) sporophyte. B) gametangium. C) pollen. D) gametophyte.
Which statement is true of chlorophyll?
a. it absorbs blue light & reflects green and red light b. it absorbs blue and red light & reflects green light c. it absorbs green light & reflects blue and red light d. it absorbs red light & reflects blue and green light