"the diagram shows a straight chain of glucose molecules. which polysaccharide is shown? a) cellulose b) glycogen c) chitin d) starch"

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?

Which of the following describes the difference in stimuli required to detect a difference between the stimuli? a. just noticeableb. signal detectionc. subliminald. top down