Answer:
radial symmetry
Starfish have radial symmetry with each arm portion of the starfish identical to each of the other regions
Explanation:
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D. Estuaries
Estuaries are a place where fresh and salt water mix.
Answer:( answer for number one) an essential nutrient for the production of amino acids, proteins, nucleic acids. ( number 2 ) for the growth, maintenance, and repair of all tissues and cells, and for the production of the genetic building blocks, DNA and RNA
