You spot your friend Enrique and yell to get his attention, but he can't hear you. As you get closer to him, you clearly hear loud music coming from his headphones. What should you warn him about?
What will be an ideal response?
If another person can hear the sound from the headphones, the sound is too loud, and loud noises can cause permanent hearing loss.
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Osmosis is an example of ____
a. facilitated diffusion b. passive transport c. active transport d. exocytosis e. endocytosis
An age pyramid with a broad base that quickly slopes up to a narrow top would be indicative of ________
A) an industrialized nation B) a developing nation C) a population with a high average age D) a population with a low survivorship of children
What do BRCA1 and p53 have in common?
A. Both cause eye cancers. B. Both cause breast cancer. C. Both are tumor suppressors. D. Both are inherited as autosomal dominant traits. E. Both are oncogenes.
The half-life of carbon-14 is 5730 years. If a sample contained 100% carbon-14 and 0% nitrogen-14 at a point in time 17,190 years ago, then what percentage of carbon-14 would it contain today?
A. 12.5% B. 25% C. 50% D. 75% E. 100%