In the same science fair, Tina asks
the question "Does caffeine
increase the heart rate of a...
Biology, 24.08.2021 19:10, sophiapknight
In the same science fair, Tina asks
the question "Does caffeine
increase the heart rate of an
measures the heart rate by looking at the earthworm under a microscopes,
the earthworm has a heart rate of 50 bpm (beats per minute). In Test 2, she
places a few drops of caffeine on the earthworm's skin and measures the rate
again. In this test, the heart rate is 68 bpm.
earthworm?"
Answers: 3
Biology, 22.06.2019 00:00, natalievick03
Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.
Answers: 1
Biology, 22.06.2019 06:30, suzymott1562
What are two examples of conduction that we use everyday
Answers: 3
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