There are twenty different types of which join together in differing sequences and numbers to form different proteins. a) fatty acids b) amino acids c) nucleic acids d) monosaccharides

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

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.

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables