<span> a characteristic of acids is that they react with metals to release hydrogen gas.</span>
Answer:
Im not sure how to circle but the three components should be circled...
Explanation:
There are 8 nucleotides in this picture.
A nucleotide consists of a phosphate group (the blue circle), a pentose sugar (the blue pentagon), and a nitrogenous base (the red, green, purple, and yellow hexagons). One nucleotide would only have one of the nitrogenous bases.
They can either be protons (positive) or electrons (negative)
The primary function of red blood cells is to carry oxygen from the lungs to the body tissues and carbon dioxide away from the tissues and back to the lungs.
Backward chaining starts with a goal then searches back. Forward chaining starts with facts and searches forward.
