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Q1: An organ or group of cells that
Q2: Mammals arose as a dominant life-form after
Q4: Which statement about the vertebrates is most
Q6: In humans, the heart and lungs are
Q8: The spinal cavity and cranial cavity are
Q15: Protists are arguably the most diverse of
Q18: Bacteria store their DNA within a spherical
Q28: Cnidaria
Q49: The greatest extinction event of all time
Q74: Lives without oxygen