In the same ways that humans do.
Cats remove waste products from their body by peeing and pooping. When you get to second grade, you will probably learn the words "defecation" and "urination" and be able to answer that question using them.
Just like in humans, cats need for for nutrients and water to keep hydrated. In the body, the food is digested. Nutrients are kept in the body. What the body cannot use is excreted as waste or 'poop'. And they urinate liquid wastes.*Cats can have diarrhea when sick. They can also get constipated.
Waste is the food waste and whaste I the whaste on your body
the waste in your body goes through a cycle and so does the waste in our homa and community.
water flushes out all waste from the body
It removes body waste by the process of deamination.
The excretory system removes waste from the body's metabolism and the digestive system removes waste from the body
The nitrogenous waste are very toxic to the brain. You will become unconscious, when the toxic waste accumulate in your body. Body spends lot of energy to eliminate the waste.
To remove undigested food and bodily waste from their system
The same reason as humans do. They have to get rid of their liquid waste.
They leave liquid waste, which is their way of scent marking, but they bury their solid waste to hide their location from other stalking animals. Domestic cats practice the same instinctive activity.
Urine is liquid waste Feces are solid waste products.