Animals active primarily at night often have _______________layers in their eyes.
Fill in the blank(s) with the appropriate word(s).
light-reflecting
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Unlike plants, fungi, and bacteria, animal cells
cannot resist volume increases in hypotonic environments. This is because unlike those other organisms, animal cells
a. do not have central vacuoles. b. do not have cell walls. c. do not have pumps that can actively pump out excess fluid. d. are smaller than those other cells and thus cannot handle large increases in volume. e. have relatively more solutes
Within the fluid mosaic of a plasma membrane, what is the role of transport and channel proteins?
A) They identify the cell. B) They may set off cellular changes such as cell division or hormone secretion. C) They prevent the passage of amino acids. D) They are cell-surface connection sites. E) They permit ions and water molecules to move through the plasma membrane.
Which of the following occurs as an enzyme produced by a cell is secreted from the cell?
A) Exocytosis B) Pinocytosis C) Phagocytosis D) Endocytosis E) Receptor-mediated endocytosis
Examples of fungi include yeasts and molds.
a. true b. false