Question

s1 unit test: characteristics of life
possible points: 4
a cow eats grass all day. the cows digestive system breaks down the grass and extracts the nutrients from it. then those nutrients are used to build essential molecules in the cows body. what characteristic of life best explains this process?
all living things reproduce
all living things need and use energy
all living things are made of cells
all living things react and respond to stimuli

Explanation:

The cow eats grass, digests it to extract nutrients for building essential molecules. This is an energy - using process. Living things need energy for their life - sustaining activities. The process described does not relate to reproduction, being made of cells, or reacting to stimuli.

Answer:

B. All living things need and use energy