8. Which of the following organ systems function like a cell membrane in animal cells a. Immune system
b. Respiratory system
c. Circulatory system
d. Reproductive system

Liquid water turns into water vapor at which step in the water cycle

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks

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.