The diagram shown above, illustrates the cycle. a) carbon b) nitrogen c) phosphorus d) water

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.

Which is an example of a vestigial structure? a. tail of a monkey b. fin of a fish c. flower of a plant d. tailbone of a human

Which of the following organisms are capable of self-fertilization? a.plants b.tigers c.humans