Answer: The digestive system rids the body of the cells' waste and the excretory system fuels the cells. The digestive system does physical digestion while the excretory system carries out chemical digestion.
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Answer:
Some bacteria have mutated and are not killed by the penicillin
Explanation:
T<span>he least likely to be a source of genetic variation among living organisms is D. asexual reproduction. Asexual reproduction is a kind of reproduction that does not include fertilization process of two gametes: female and male but only includes parts of plants or cells. In this case, variation is minimized</span>
Answer:
<em>In electromagnetic waves, energy is transferred through</em> <em>vibrations of electric and magnetic fields. In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels. In water waves, energy is transferred through the vibration of the water particles.</em>
Explanation:
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Answer C. centromere—the region that joins the two sister chromatids
