Answer:
Metabolic wastes or excretements are substances left over from metabolic processes (such as cellular respiration) which cannot be used by the organism (they are surplus or toxic), and must therefore be excreted.
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Memory loss is not part of physical change by aging
Answer:
E. by prioritizing his tasks based on their importance
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The HIGHER the concentration of HIV in semen or genital fluids, the more likely it is that HIV will be transmitted to a sex partner.
At the heart of the eukaryotic cell-division cycle are the precise duplication and segregation of chromosomal DNA. These two events take place at distinct points of the cell cycle: DNA is replicated during S phase, and then the replicated DNA strands are accurately partitioned to the two daughter cells during M phase.
