Question

question 5 of 25
which sentence is the best example of a living thing obtaining
matter and energy?

a. an african violet plant grows from a leaf cut from an
existing plant.

b. a sea anemone moves its tentacles in response to touch.

c. an oak tree absorbs sunlight and carbon dioxide
through its leaves.

d. a tadpole increases in size as its cells divide into
many more cells.

Explanation:

To determine the best example of a living thing obtaining matter and energy, we analyze each option:

• Option A: Plant propagation (growing from a leaf cutting) relates to reproduction or growth, not direct matter/energy acquisition.
• Option B: Tentacle movement in response to touch is a response to stimuli, not energy/matter acquisition.
• Option C: An oak tree absorbing sunlight (energy) and carbon dioxide (matter) via photosynthesis directly involves obtaining matter and energy.
• Option D: Tadpole growth via cell division is about growth, not acquiring matter/energy from the environment.

Only Option C describes the process of a living thing (oak tree) taking in energy (sunlight) and matter (carbon dioxide) for survival/metabolism.

Answer:

C. An oak tree absorbs sunlight and carbon dioxide through its leaves.