A) A flap in the heart located between each atrium and ventricle.
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Answer:
Accessing food because while they lay on the ocean floor they search for foods and use the water to digest it
The answer should be Non banded grains
Cytosine pairs with Guanine
Adenine and Thymine are pairs also
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Answer:
1. it's an atom
Explanation:
An atom is the smallest particle of an element, having the same chemical properties as the bulk element. The first accurate theory explaining the nature of matter was Dalton's Atomic Theory: 1. All matter is composed of atoms, and atoms are indivisible and indestructible.