The organisms in a pond and the physical factors influencing them best describes an ecosystem.
Answer:
The answer is A.
Explanation:
In the case of cyanide poisining which prevents the oxygen from being used by the body, the brain is one of the first organs that gets effected because it uses around 20% of the total oxygen intake of the body and the other systems and organs mostly depend on the brain to function properly so the brain runs out of oxygen before the other parts of the body.
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The part of the eye that acts as a secondary area of refraction to fine tune the focus is the lens. The lens of the eye is a biconvex, transparent structure of the eye that helps in refraction along with the cornea. Most of the refracting of the light rays happens in the cornea, but the lens help refract light to be focused on the retina by changing its shape to focus on objects at various distances.
Answer:
Amino acids are the building blocks of proteins. protein is a chain of amino acids connected together
D) use different scientific names for the same organism.