Biology, 23.06.2019 20:00 tareas7009
Compare positive and negative feedback mecha- nisms in a living and non-living system positive, non-living: positive, living: negative, non-living: negative, living:
Answers: 1
Biology, 22.06.2019 00:00
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 12:30
Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled
Answers: 1
Biology, 22.06.2019 17:00
Your sense of touch depends upon: a. direct contact b. heat chemical c. reactions d. pain
Answers: 2
Compare positive and negative feedback mecha- nisms in a living and non-living system positive, non...
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