Biology, 05.12.2021 23:30 alyssalopez9023
A police car is heading towards you with its siren blaring. Explain what is happening to the
wavelength as the police car is moving towards you and what is happening to the wavelength
when the police car moves away from you.
make sure to use evidence and reasoning in
your response.
Answers: 3
Biology, 21.06.2019 18:30
Match the type of adaptation to the correct example, structural adaptation functional adaptation behavioral adaptation example type of adaptation elephants live in herds to protect their young leaves of a rain forest plant species have a pointed tip that enables rainwater to drain off easily. camels have nostrils that they can close snakes produce venom to kill prey and defend themselves. earthworms coil when touched, as part of a defense mechanism. human skin darkens with increased exposure to sunlight.
Answers: 3
Biology, 22.06.2019 11:30
Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.
Answers: 1
Biology, 22.06.2019 15:30
When an object is moving away from you while still making a sound, the pitch of the sound is perceived to a. lower b. unchanged c. fluctuating d.higher
Answers: 2
A police car is heading towards you with its siren blaring. Explain what is happening to the
wavel...
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