A student plays the trombone by vibrating air in the instrument through a mouthpiece. The air vibrates through the tubes, and the sound exits the bell. When the student positions the slide at positions P through R, different notes are heard from the bell. The frequencies of the notes at each position are listed in a table.

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above