Answer:
When you scrape your knee, skin cells are replaced by meiosis.
Explanation:
Answer:
Technology because we don't have the necessary technology to explore the parts of space and for all we know we don't even know what the universe actual looks like or if there are alternate universes but as technology advances we will know. Explanation:
Antibiotics work by affecting things that bacterial cells have but human cells don't. ... The antibiotic penicillin works by keeping a bacterium from building a cell wall. Bacteria and human cells also differ in the structure of their cell membranes and the machinery they use to build proteins or copy DNA.
The answer for the two blank lines (_+_) is (CO2 + H2O)
