Measuring its costs and benefits in terms of energy spent and/or gained, which interaction(s) involve at least one individual gaining? Select all that apply
A. competition
B. predation
C. obligate mutalism
D. facultative mutalism
E. commensalism
B,C,D,E
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Which of the following is not part of the appendicular skeleton?
A. pelvic girdle B. sternum C. pectoral girdle D. femur E. humerus
The most specific name for an incoming monomer about to be incorporated into a DNA chain is ________
A) nucleoside monophosphate B) ribonucleoside diphosphate C) nucleotide D) deoxyribonucleoside E) deoxyribonucleoside triphosphate
The ____ of an atom have no charge
a. electrons b. protons c. neutrons d. ions e. nuclei
Which of the following statements about collagen isfalse?
(a) Collagen synthase organizes the mature collagen molecules into ordered collagen fibrils. (b) Collagen is synthesized as procollagen and secreted to the outside of the cell in a secretory vesicle. (c) The terminal procollagen domains are cleaved by a protease in the extracellular space. (d) Cells can break down a collagen matrix using matrix proteases.