Biology, 13.10.2019 17:30 ninaaforever
Donna has observed that her father can control the speed of their grandfather clock by adjusting the height of the weight on the end of the pendulum. donna thinks that the pendulum will move faster when the weight is lowered, and wants to test her idea. donna gets a stopwatch and measures the time it takes for the pendulum to swing twenty times when the weight is moved to its lowest position. donna begins to move the pendulum up by 1 cm and continues to measure the time for twenty swings of the pendulum. donna records her data.
Answers: 2
Biology, 21.06.2019 15:00
Which of the following is an example of a non-falsifiable hypothesis? a. there is a teacup orbiting the milky way galaxy. b. there is no life on mars. c. the human species started in africa. d. humans cannot live without the amino acid methionine
Answers: 1
Biology, 21.06.2019 16:30
Which of these is not a function of some membrane proteins ? a.allowing polar molecules to enter the cell b.recognizing other types of cells c.receiving messeges from other cells b.carrying messages to oher cells
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Biology, 21.06.2019 22:00
Nasa scientists must work together to make sure that everything is correct and accounted for when launching a shuttle. besides a physicist, what other type of scientist would be in making sure that the shuttle has the appropriate type and amount of fuel to reach its destination?
Answers: 2
Biology, 22.06.2019 10:00
In the presence of oxygen, glycolysis is followed a. the krebs cycle b. lactic acid fermentation c. alcoholic fermentation d. photosynthesis
Answers: 2
Donna has observed that her father can control the speed of their grandfather clock by adjusting the...
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