Which best describes the pericardium? structures inside the heart that ensure that blood flows in one direction only a sac around the heart that allows the heart muscle to receive oxygen a sac around the heart that protects the heart and chest tissues structures inside the heart that bring blood to the lungs for oxygenation
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Biology, 22.06.2019 10:00
Which is an example of a vestigial structure? a. tail of a monkey b. fin of a fish c. flower of a plant d. tailbone of a human
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You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars
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Approximately how much solid waste do americans produce annually? a) 250 tons b) 250 thousand tons c) 250 million tons
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Biology, 23.06.2019 01:30
The inheritance pattern of a disorder is illustrated in the pedigree chart. what type of disorder is this?
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Which best describes the pericardium? structures inside the heart that ensure that blood flows in...
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