Answer:
Ozone
Explanation:
Ozone is considered a pollutant in the troposphere, but in the stratosphere it is essential to life on earth because it absorbs biologically harmful UV radiation. The mesosphere and the thermosphere are two additional atmospheric layers above the stratosphere.
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Answer: Electromagnetic waves
Explanation: The main property of the waves is the way how they propagate or travel in medium The waves which can travel without a medium is said to travel in vacuum or air.
Answer: False
Explanation: This is FALSE because the bats make a high frequency sound and we can't hear that type of sound.
I believe <span>a </span>regulatory<span> repressor </span>protein<span> is normally bound to the operator. This prevents the transcription of the genes on the </span>operon<span>.</span>
