Which of the following is correctly matched?
The circulatory system exchanges gases with the environment.
The digestive system carries nutrients around the body.
The skeletal system breaks down food to allow the body to get nutrients.
The integumentary system is the first layer of defense for the body.
Answers: 2
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When elements that form a mineral dissolve in hot water, they form a mixture called a(n) a)geode b)vein c)evaporation d)crystallization e)magma f)lava g)solution h)gem
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Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?
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What processes would you expect to be key in the production of yogurt ?
Answers: 1
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Forensic scientists think they know the identity of a skeleton. what rule should they use to select a relative whose dna could be used to try to confirm the identity?
Answers: 3
Which of the following is correctly matched?
The circulatory system exchanges gases with the enviro...
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