a chemical dye whose color is affected by acidic and basic solutions is an acid base indicator
<span>In terms of energy and entropy, systems in nature tend to undergo changes toward lower energy and higher entropy. Entropy is important as it describes the flow and distribution of energy. For a process to to occur spontaneously, it is a necessary condition that the entropy of the system undergoing the process to increase. If the entropy decreases, then that process cannot occur spontaneously. It needs some work/ energy to be pumped in in order for the process to occur</span>
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Well, human destruction, pollution and overpopulation could all be threats to coral reefs.
Answer:
Hydrogen and Cobalt
Explanation:
Break up each individual element
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Answer:
1. The bases are on the <u>interior</u> of the double helix.
2. They are arranged<u> neatly stacked</u>.
3. The phosphate groups are on the <u>exterior</u> of the DNA molecule.
4. The sugar groups on the <u>exterior</u> of the DNA molecule.
Explanation:
DNA is made up of basic chemical components called nucleotides. These basic components include a phosphate group, a sugar group and one of four types of alternative nitrogenous bases. To form a strand of DNA, the nucleotides unite to form chains, alternating with the phosphate and sugar groups.
The four types of nitrogenous bases found in nucleotides are: adenine (A), thymine (T), guanine (G), and cytosine (C). The order, or sequence, of these bases determines which biological instructions are contained in a strand of DNA, being within the strands already mentioned.