Most animals share many characteristics. they are multicellular, they reproduce sexually, they have specialized parts, and they can move. what is the one other characteristic most animals share?
a. they breathe oxygen through their mouth
b. they eat other organisms to gain energy
c. they have appendages like arms and legs
d. they absorb energy from sunlight in the process of photosynthesis

b. They eat other organisms to gain energy

Explanation: nutrition is one of the main characteristics of living organisms.animals need the energy from food as fuel to carry out their daily metabolic activities .

Animals depend on already made food as they cannot manufacture their own food.

Most animals feed on plants, they are called herbivores.most animals feed on other animals,they are called carnivores.most animals feed on both plant and animals,they are called omnivores.

Most animals feed on plankton on water,they are called filter feeders.most animals feed on liquid,they are called fluid feeders.

Animals mostly take solid food into their system ,they digest the food,absorb it and egest the waste.