a scientific model is a model used to test theories. sometimes scientist use rats as a scientific model
The answer is most simply A
Answer: Atoms constitute the fundamental units of matter, and are a constituent of each element. In large part, the mass of an atom is determined by its positively charged protons and neutral neutrons.
Explanation:
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The answer is true, plants often have minerals as in elements like iron.
Answer:
is always a higher organism
Explanation:
lets take an example:
food chain consisting of zooplankton, small fish, big fish and man
as the order goes in the question ,the organism at the end of this food chain is man
