The function is this macromolecule is: a main source of quick energy A) Carbohydrates
B) lipids
C) nucleic Acids
D) proteins

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one