What is the current population of the earth? 6 trillion
6 million
7.5 billion
9 billion

Where in the body can you find chemoreceptors? a. on the skin and ears, to detect pressure, touch, motion, and sound b. on the retina, to detect a single photon of light c. on the skin, to detect temperature or specific chemicals d. on the tongue and in the nose, to detect taste or odor

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Contrast how pollination is different among gymnosperms and angiosperms.