Many species of ants "farm" aphids, protecting them from predation and collecting concentrated sugars (i.e. honeydew) from them. This type of ant/aphid relationship is known as
A. dispersive mutualism.
B. defensive mutualism.
C. parasitism.
D. trophic mutualism.
E. commensalism.
B. defensive mutualism.
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Where would you find a cell adhesion molecule?
A. in an axoneme B. at a cellular junction C. near the centrosome D. in the microvilli
Which of the following groups of vertebrates exhibits a "flow through" respiratory system?
A. mammals B. birds C. amphibians D. fishes E. birds and fishes
A test carried out under controlled conditions that may be manipulated by a researcher is a(n)
a. experiment. b. hypothesis. c. problem. d. procedure. e. variable.
The ____________ gland in the neck produces several important hormones, including thyroxine, triiodothyronine, and calcitonin.
Fill in the blank(s) with the appropriate word(s)