Answer:
Hi, you probably already submitted but I believe it will be A: All living things use energy to carry out essential life functions.
B. Not all living things have brains. For example, plants are living and they don't have brains. Neither do unicellular organisms.
C. Not all living things have stomachs. Plants eat, but not with a stomach. They absorb nutrients.
D. Phagocytosis is ingestion. Not all living things undergo it. Again, going back to the plants example, they do not, so therefore it isn't all living things.
