Which of the following species concepts might differentiate species on the basis of descent from a common ancestor?
A. Ring species
B. Ecological species
C. Evolutionary species
C
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Phagocytosis involves all EXCEPT which of these?
a. receptors b. a meshwork of microfilaments c. pseudopod formation d. bulk-phase endocytosis e. vesicle fusion with lysosomes
Living organisms covalently link smaller molecules to synthesize large organic molecules called ________
Fill in the blank(s) with correct word
Capillary action is one of the forces that aids water's upward movement in plants. The narrower the diameter of the tube, the farther the water column will rise. Capillary action is a result of water molecules
A. being associated with hydrophobic molecules, which can result in upward movement. B. having an adhesive force, which allows them to attach to the vessel walls. C. producing sufficient surface tension to overcome the pull of gravity. D. storing heat and thus moving faster because of heat of vaporization. E. having a strong cohesive force and attaching to the surrounding vessel walls.
Measures that include noneconomic indicators are better than the gross national product is at revealing our quality of life.
Answer the following statement true (T) or false (F)