Which behavior is an example of agonistic behavior?
A) A dog raises its hackles, bares its teeth, and stands tall to appear threatening.
B) A honeybee does a waggle dance to indicate the direction of food.
C) A male ruffed grouse spreads its tail and beats its wings to attract a female.
D) Ants mark their trails by releasing pheromones.
Answer: A
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A group is considered monophyletic if
A. all members of the group share a common ancestor that is included in the group. B. not all descendants of the common ancestor are included. C. all members share homoplastic traits. D. the group does not contain the most recent common ancestor. E. it is the most parsimonious grouping.
Which of the following statements is FALSE?
A) Carbon, hydrogen, oxygen, and nitrogen are the most abundant elements of living matter. B) Some naturally occurring elements are toxic to organisms. C) All life requires the same essential elements. D) Iron is needed by all humans.
The causative agent of acne is
A. Staphylococcus aureus B. Micrococcus luteus C. Propionibacterium acnes D. Streptococcus epidermidis E. Corynebacterium diphtheriae
Indicate the statements that are true about carnivorous plants (check all that apply)
A. some carnivorous plants engage in symbioses. B. carnivorous plants are likely to be green. C. carnivorous plants with active trapping mechanisms are often stimulated by wind. D. some carnivorous plants produce substances that enhance their ability to attract prey. E. carnivorous plants fix their own nitrogen.