The American Red Cross says that about 45% of the U. S. population has Type O blood, 40% Type A, 11%Type B, and the rest Type AB.1.a)Someone volunteers to give blood. What is the probability that this donor1.has Type AB blood?2.has Type A or Type B?3.is not Type O?2.b)Among four potential donors, what is the probability that1.all are Type O?2.no one is Type AB?3.they are not all Type A?4.at least one person is Type B?
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Biology, 22.06.2019 04:00
The transport tubes for food coming down the plants are called?
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Biology, 22.06.2019 07:00
An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?
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Biology, 22.06.2019 07:30
The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?
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Biology, 22.06.2019 10:00
Which of the following human activities resulted in the growth of the north american deer population?
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The American Red Cross says that about 45% of the U. S. population has Type O blood, 40% Type A, 11%...
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