Select the correct text in the passage. Gordon wrote this passage about mechanical waves for his physics class. But he got most of his facts mixed up. Only one sentence is correct
Which sentence is it?
Mechanical waves don't need a medium to travel. When they travel through a vacuum, mechanical waves are oval-shaped. Thefre either
transverse or double transverse waves, Mechanical waves can apply pressure to and push on objects in their path. But they travel slower in
denser mediums.
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Which of the following is a difference between active transport and facilitated diffusion? view available hint(s)which of the following is a difference between active transport and facilitated diffusion? facilitated diffusion can move solutes against a concentration gradient, and active transport cannot.active transport involves transport proteins, and facilitated diffusion does not.facilitated diffusion involves transport proteins, and active transport does not.active transport requires the expenditure of cellular energy, and facilitated diffusion does not.

Look at the photo of the leaf. which term best describes this leaf?

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules