Biology, 03.04.2020 00:01 dontworry48
Paul’s class investigated the effects of friction on the motion of a toy car. Using ramps with different surfaces, students determined the amount of time, in seconds (s), for the toy cars to reach the bottom of each ramp. All variables were controlled except the tested variable (independent variable). Paul's group concluded that toy cars on a sandpaper surface are fastest.
Which statement best evaluates the group's conclusion?
A) The results support the conclusion.
B)The conclusion is valid for the data recorded.
C) The results fail to support the conclusion.
D) More data need to be added to the conclusion.
Answers: 2
Biology, 21.06.2019 22:30
Which organisms have pharyngeal arches that develop from all three germ layers and go through the same development stages as embryos? 1.bird 2.ladybug 3.starfish 4.snake
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Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels
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Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?
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Paul’s class investigated the effects of friction on the motion of a toy car. Using ramps with diffe...
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