why people depend on plants (300 words essay)
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If there is no plants there will be no humans alive. We depend on plants for many things.One reason we depend on plants is for consumption.
Plants have the unique ability of producing their own food through a process called photosynthesis.
In this process, plants are able to produce macromolecules such as carbohydrates that cannot be produced in animals or humans.
In humans, the only to gain these macromolecules is to consume plant matter, or consume plant-eating animals (herbivores).
When humans consume plants, the carbohydrates, lipids, and proteins that are broken down through two forms of cellular respiration. The two processes of cellular respiration displayed in humans are anaerobic or aerobic. The deciding process used depends on the presence of oxygen.
This means that humans not only need plants for eating, but also need their created oxygen to break the food down efficiently. In humans, cellular respiration also produces heat also needed in the body for thermoregulation, Thermoregulation that is an example of temperature homeostasis in humans, requires heat energy to maintain a relatively constant internal temperature.
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Answer:
humans depends on plants and animals for food :-
People depend on plants for food, clean air, water, fuel, clothing, and shelter.
People depend on plants for food, clean air, water, fuel, clothing, and shelter. Nearly all food webs begin with plants, the primary producers.
People depend on plants for food, clean air, water, fuel, clothing, and shelter. Nearly all food webs begin with plants, the primary producers. During photosynthesis, green plants use sunlight to change carbon dioxide from the air and water into simple sugars made of carbon, hydrogen, and oxygen.