Question

horses have two kidneys. how do the horses kidneys help remove waste? they release carbon dioxide into the air. they store liquid waste until it is released from the body. they filter waste out of blood.

Explanation:

The kidneys are part of the excretory system. Their main function is to filter waste products from the blood. For example, in mammals like horses, the kidneys play a crucial role in maintaining the body's internal environment by removing metabolic waste. Releasing carbon dioxide is mainly the function of the respiratory system. Storing liquid waste is the function of the urinary bladder.

Answer:

They filter waste out of blood.