Answer:
A-all of the answers are correct
Explanation:
In DNA replication, the strands come apart and creat a "new copy" of the original strand.
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Some cells are more active than others and also more available-to-promise (ATP). Muscles, especially the cardiac muscle cells work continuously, so they have a large number of mitochondria since the need more energy.
Dr. Alvarez is doing research on the subfield of psychology called the behavioral neuroscience. Scientists from the field study the biological foundation of human behavioral characteristics. These scientists are trying to find out what physiological processes and anatomical structures are involved in certain aspects of human behavior.