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Q4: The study of the structure and function
Q11: The skeleton of sea urchins consists of
Q13: Which type of crustacean do many zoologists
Q13: Charles Darwin published convincing evidence of evolution
Q17: A group of individuals of the same
Q20: Unlike other annelids,echiurans<br>A)have an open circulatory system.<br>B)do
Q23: The biological definition of a _ is
Q31: Fusion of posterior thoracic vertebrae,all lumbar vertebrae,all
Q32: Each successional stage is called a/an _
Q39: In Gulliver's Travels,Jonathan Swift uses the bestial