Explanation:
Food and liquids are processed by the digestive system. After nutrients are absorbed during digestion, the excretory system removes solid waste products, or feces, through the rectum. The excretory system also works with the respiratory and circulatory systems and removes carbon dioxide (CO2) from the body.
Answer:
6CO2 + 6H2O -> C6H12O6 + 6O2
Answer:
O to kill bacteria that cause disease
Explanation:
penicillins are a group of antibiotics used to treat a number of bacterial infections.
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Answer:
Billions
Explanation:
"Then each of these strands can be used to create two new copies, and so on, and so on. The cycle of denaturing and synthesizing new DNA is repeated as many as 30 or 40 times, leading to more than one billion exact copies of the original DNA segment."
