Answer the following statements true (T) or false (F)
1.The proteins needed to form blood clots are known as clotting factors.
2.The lymphatic system collects fluid that has leaked from blood capillaries, removes bacteria, and returns the cleansed fluid to the blood.
3.If a smoker deliberately held their respiration rate at the same level as a nonsmoker, the slowed diffusion of gas due to smoking-related damage could lead to decreased blood
pH.
4.The interaction of blood pH, medulla, and carbon dioxide is an example of homeostasis.
5.The medulla has receptors that monitor H+ concentrations in the cerebrospinal fluid.
1.TRUE
2.TRUE
3.FALSE
4.TRUE
5.FALSE
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To truly begin to understand nature, we must study and understand:
A. molecules. B. cells. C. organisms. D. ecosystems. E. The study of nature requires an integrated approach that considers molecules, cells, organisms, and ecosystems.
Which of the following groups of microorganisms is not found among the normal gut microbiota?
A. Protozoa (Entamoeba, Trichomonas) B. Fungi (Candida) C. Firmicutes (Streptococcus, Staphylococcus, Clostridium, Bacillus) D. Enterics (Escherichia, Enterobacter) E. Spirilla (Leptospira, Borrelia)
The movement of nutrient in the form of a gas takes place in which cycle?
a. global water cycle b. atmospheric cycles c. sedimentary cycles d. solar-plant cycle e. all of these
The solubility of oxygen ________ as water warms
Fill in the blank(s) with correct word