The smallest structural unit that exhibits the characteristics of living things is
A. an organ.
B. an individual.
C. a system.
D. a cell.
E. tissue.
Answer: D
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What will be an ideal response?
To keep horses from moving or kicking, people sometimes use a(n) _________________________________________, a type of restraint that ties all four feet in an "X" pattern
Fill in the blank(s) with correct word
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A: 60 B: 50 C: 20 D: 40 E: 30
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