Q: What's the term for a piece of an organism breaking off and forming a new organism? Choices: - depletion - improvization - extinction - fragmentation A:
fragmentation

Q: In living systems, diffusion of substances into and out of cells is mediated by the what membrane? Choices: - gas - fluid - ferment - plasma A:
plasma

Q: Q: With an increased understanding of gene regulation and gene function, medicines can be designed to specifically target diseased cells without harming these? Choices: - hosts - stem cells - pathogens - healthy cells A:
A: healthy cells

Question: Q: Alchemists, as early as the eighth century, knew nitric acid as aqua fortis, which means? Choices: - isolated water - clean water - applied water - strong water A:
Answer: strong water

*Question*
Q: How does the heart transport blood? Choices: - blood pellets - nerves - muscles - blood vessels A:
**Answer**
blood vessels

(Q).
Q: What tool is useful for studying the ocean floor because the environment is remote and underwater? Choices: - microscope - telescope - scale - sonar A:
(A).
sonar