What happens to a cell that is placed in a hypertonic solution?
a. The cell swells.
b. The cell shrinks.
c. The cells stays the same size.
d. The cell will lyse.
b. The cell shrinks.
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Which statement concerning production of bryophyte reproductive cells is true?
a. Spores and gametes are produced by meiosis. b. Spores and gametes are produced by mitosis. c. Spores are produced by meiosis, whereas gametes are produced by mitosis. d. Spores are produced by mitosis, whereas gametes are produced by meiosis. e. Spores and gametes are both used for sexual reproduction.
Given that an unknown atom's mass number (AMU) is 27, its combination of particles could be
A. 27 electrons, 16 neutrons, 16 protons. B. 27 neutrons, 27 protons, 27 electrons. C. 15 neutrons, 12 electrons, 15 protons. D. 16 electrons, 11 neutrons, 16 protons.
Facultative heterochromatin is heterochromatin that contains
a. sequences inactive in one cell type but active in others. b. DNA sequences that are not transcribed in any cell type. c. a mixture of heterochromatin and euchromatin. d. heterochromatin that functions in ways other than for transcription.
Agar is made from which protist:
A. Red Algae B. Brown Algae C. Euglena D. Slime Mold