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Because as we move and grow, this uses fuel which invariably creates waste. If we didn't release the wastes, they'd accumulate in our bodies and we'd get very sick and die.
For example, we breathe to take in oxygen, which is essential for 'cellular respiration' which creates the energy our cells need to function. The corresponding waste product of this is carbon dioxide, which travels back to the lungs and we breathe it out. Then we can breathe in more oxygen, and the cycle repeats.
What else can I help you with?
Do cells take in food and give off waste?
A cell takes in food and takes out wastes through th Lysosomes
What kinds of wastes does the body give off?
perspiration (sweat)feces (poop)urine (pee)dead skinoilscarbon dioxidewater vapor
Give examples of domestic wastes?
garbagerubbishashesdead animalssludgeconstruction and demolition
How do plants give off waste?
Plants give off waste as a products through photosynthesis. These wastes include but are not limited to oxygen the gas.
What wastes given off by burning of foods?
carbon dioxide
How do plants get rid of solid wastes?
Most plants do not have solid wastes. Only those plants that eat insects have solid wastes. The venus fly trap and sundew let the rotted bodies of insects fly away in the wind when they open up. In the pitcher plant, the rotted bodies decompose in the bottom of the water trap. Plants that do not eat insects do not have any solid wastes to get rid of. They get their nutrients from the soil with their roots, they also take in water, and take in carbon dioxide and give off oxygen. They do not have solid wastes.
What Living things were different from non living?
Do you mean how are living things different from non-living? If yes, living things have cells, give off wastes, and some other stuff.
What two organs from other systems are also considered to be part of the excretory system?
The lungs and the skin are part of the excretory system as both give off some wastes.
Why are there flies in the world?
There are flies in the world because they are decomposers. They eat the wastes of animals and people and the wastes that animals and people gives off, such as feces That is why you see them on feces around garbage cans.
What are the sources of waste?
Food wastes, paper, cardboard, plastics, textiles, leather, yard waste, wood, glass, metals, ashes, housekeeping wastes, packaging, construction and demolition materials, hazardous wastes, special wastes, steel, concrete, dirt, street sweepings, landscape and tree trimmings, general wastes from parks, beaches, and other recreational areas, sludge, industrial process wastes, scrap materials, off-specification products, slay, tailings, spoiled food wastes, agricultural wastes, bulky items, consumer electronics, white goods, batteries, oil, tires, and pesticides.
Do plants give out oxygen?
I think when they receive carbon dioxide
Humans get their energy from?
Humans get energy from eating and sleeping. It's the way we were created. We let off energy by exercising and letting off wastes.
