1. Clara stops for 10 minutes to catch up with a friend. .2. Clara jogx 600 m in 5 minutes.
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3. She walks at a constant speed of 80 mmin.

According the inverse square law, doubling the distance from the source of the sound, a speaker, for example, will drop the sound 6 db each time. if you were standing in the back of an auditorium, 32 feet away from a speaker not using any amplification, would you be able to hear a speaker clearly? why or why not?

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.

Are gametes exactly the same? explain why or why not?