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What structure is superior to the larynx and part of the digestive system that channels food/liquids to the esophagus?

Human beings have how many sets of teeth?

Invertebrates are separated from vertebrates by not

Which of the following has had the largest impact on the loss of biodiversity in rainforest?

Which of the following evolutionary events happened during the Paleozoic Era?

Based on the three methods of defining species, scientists now know the exact number of species on the planet.

Which of the following is not a characteristic of a prokaryote?

Which group of plants have naked-seeds and consists of ginkgos, cycads, and conifers?

Which of the following is included in the archaeplatida supergroup?

Molluscs were the first organisms to have a(an)  ______ body plan and well-developed organ systems.