Plants absorb dissolved nitrates from soil and convert them into a. free nitrogen b. urea c. ammonia d. proteins

Which of the following is a good definition for the word adaptation? question 1 options: a trait that an organism survive and reproduce in its environment. a change in an organism's environment. the way in which animals obtain food. a temperature change that can cause the extinction of plants and animals.

The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping

The changes that the students observed, rapid breathing and sweating, would be classified as a to a change in a system.