The prefix "cardio" refers to D. heart
Answer: Products of respiration:
Glucose and oxygen
Carbon dioxide and water (and ATP)
Answer:
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Explanation:
<span>All cells have the same DNA. They are different because different genes have been locked up and only some of them are expressed. The process began in the embryonic stage, when stem cells are turned into different types of cells by turning off some of the genes. Scientists have been looking for ways to reverse the process, meaning turning specialized cells back into stem cells. Some success has been reported using different methods. The latest one uses a weak acid to stress the cells.</span>
Intraspecific competition drives natural selection,as individual members of a species compete with each other for limited natural resources.
