Fact 1: Cells are the basic units of the structure and function of living things. Fact 2: All cells use glucose for energy. Given the two facts above, what do all living things use for energy?
Options are:
[1]. fish
[2]. kids
[3]. energy
[4]. glucose
[5]. The Sun
[6]. procreation
[7]. sunlight
[8]. food
Answer:
[4].