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Biology, 22.06.2019 15:00
Which of the following organisms are capable of self-fertilization? a.plants b.tigers c.humans
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The most effective way to provide children with safety messages is to
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Biology, 22.06.2019 18:00
1. you serve a volleyball with a mass of 2.1 kg. the ball leaves your hand with a speed of 30 m/s. the ball has energy. calculate it. 2. a baby carriage is sitting at the top of a hill that is 21 m high. the carriage with the baby weighs 12 n. the carriage has energy. calculate it. 3. a car is traveling with a velocity of 40 m/s and has a mass of 1120 kg. the car has . calculate it.
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Biology, 22.06.2019 19:30
Why do the circulatory systems of land vertebrates have separate circuits to the lungs and to the rest of the body?
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How are voltage, current, and resistance related?...
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