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Answers: 3
Biology, 21.06.2019 14:00, madleneinejessup
According to the law of conservation of energy, energy can neither be created nor destroyed. if this is true, why is there less energy in the top of the energy pyramid than there is in the bottom of the energy pyramid?
Answers: 1
Biology, 22.06.2019 16:00, shaydog6353
Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems
Answers: 1
Mathematics, 03.05.2020 14:16
Mathematics, 03.05.2020 14:16
English, 03.05.2020 14:16
Mathematics, 03.05.2020 14:16