Unlike plants that can make food by using sunlight as a source of energy (photosynthetic), humans must acquire energy from food that is obtained by such means as going to the supermarket or, as our ancestors did, by hunting or vegetable gardening.
(plants; can make; food) (our ancestors; did; ) (humans; must acquire; energy; from food) (food; is obtained; by such means as going to the supermarket or, as our ancestors did, by hunting or vegetable gardening)
plants our ancestors humans food
can make did must acquire is obtained
food
energy from food
by such means as going to the supermarket or, as our ancestors did, by hunting or vegetable gardening