When a hot surface is touched, receptors in the hand send a signal to the nervous system. the nervous system then sends a signal to the muscles in the arm to contract and move the hand from the hot surface. which of these best describes this example?

45 points how are people today being protected from tsunamis? earthquake data is analyzed to detemrine if a tsunami is likely, and if so, warnings are sent out. areas in tsunami risk zones are no longer heavily populated. radar is used to measure wave heights regularly. meteorologists study the winds to determine if wave heights will be large.

What is any method of measuring the age of an object or event in years, such as using atomic half-life?

An organism's reproductive strategy includes all of the following except a. the number of offspring produced. b. the amount of energy expended in producing offspring. c. the length of time parental care is given d. the number of alleles an organism passes on.