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1. a) Name a set of homologous structures. b) Two species have homologous structures. What do these homologous structures show about the evolutionary relationship between the two species?
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How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?
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Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses
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Which of the following best describes the relationship between glucose and complex molecules such as hormones?
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Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.
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1. a) Name a set of homologous structures.
b) Two species have homologous structures. What do these...
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