What is a possible benefit of studying plants in the rainforest? 1) The Plants may hold medicines to treat human diseases - 2) The plants may produce need it carbon dioxide - 3) The plants may be cut down and sold in floral shops - 4) The Plants may make Toxins for human consumption

Which best describes a rhinovirus? o a. a virus that causes a common cold o b. a protective shell around a virus o c. a tube the comes off a virus o d. a piece of dna transferred by a virus

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.

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?