In plants, spores are produced by the process of __________
A. spermatogenesis
B. meiosis
C. mitosis
D. binary fission
E. oogenesis
B
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How is the color of each of the major photosynthetic pigments (chlorophyll a, chlorophyll b, carotenes, and xanthophylls) related to the light wavelengths absorbed by that pigment?
What will be an ideal response?
Why are some body cells responsive to a particular hormone, whereas others are not?
A. Responsive cells express a specific receptor for the hormone. B. Responsive cells are located closer to the gland that releases the hormone. C. Whether or not a cell responds to a hormone depends entirely on what type of cell it is (liver cell vs. fat cell vs. nerve cell) because hormones only activate one type of cell. D. Responsive cells have complex signal transduction pathways, whereas cells that do not respond to a particular hormone lack these pathways. E. All of the answer options are correct.
The difference between an akinete and endospore is that
A. Akinetes are whole cells filled with food, whereas endospores are bodies produced inside of cells. B. Akinetes are not capable of locomotion whereas endospores move freely. C. Akinetes cannot resist stressful conditions whereas endospores can. D. Endospores cannot resist stressful conditions whereas akinetes can. E. Akinetes are reproductive structures whereas endospores are dormant, resistant structures.
Which primary producer listed below is considered the most abundant life form in the sea?
a. Dunaliella b. Synechoccus c. Methanococcus d. Pryolobus e. Prochlorococcus