Behavior refers to coordinated responses that an animal makes to a(n) __________. Fill in the blank(s) with the appropriate word(s)
ANSWER: stimulus
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An organism is considered truly eukaryotic when ________
A) its cells cannot survive on their own B) its cells form colonies C) its cells specialize in various tasks D) each cell can carry out all of life's functions
Food and water are carried throughout your body in blood vessels. In a plant, the transportation of food and water is the main function of two types of vascular tissue. Which tissue in a stem conducts water upward?
A) dermal tissue B) ground tissue C) xylem D) phloem
In summer, when plant roots are converting sugar to store as starch, the root is the sugar ________ and the leaves are the sugar ________
A) source; source B) sink; sink C) source; sink D) sink; source or sink E) sink; source
The predominant bacterial species that colonizes the human skin is
A. Staphylococcus epidermidis. B. Bacterioides fragilis. C. Candida albicans. D. Lactobacillus. E. Streptococcus pneumoniae.