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Q8: Almost all organisms alive today evolved from
Q12: The islets of Langerhans are in the
Q14: As terrestrial vertebrates evolved,the _ became increasingly
Q19: The tropics are warmer than the temperate
Q25: The _ are fungi that have lost
Q27: Essential organic substances that are used in
Q27: Early vascular plants grew by only cell
Q28: _ is the field of study in
Q36: The sixth mass extinction event is due
Q45: List the two principal types of cells