The system that is responsible for breaking down food and releasing essential nutrients and other substances that the body needs and requires is the digestive system.
In the 1800s, Darwin explains the origin of species. As species originate through adaptation by natural selection.
Answer: Species originate through adaptation by natural selection
<u>Explanation:
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The Origin of species through natural selection is a pioneering scientific effort of the British naturalist Charles Darwin in England. Darwin's theory is that organisms are gradually evolving through what is called "natural selection"
It is a process in which organisms change due to hereditary changes in physical or behavioural traits. Changes that allow the body to better adapt to its surroundings, help it survive and have more offspring.
E. very small atoms
fusion reaction in which two atoms of hydrogen combine together or fuse to form an atom of helium
D is correct. Cool air sinks, which forces warm air to rise.
Convection is when warm material rises and cool material sinks
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