What is the significance of the respiratory membrane to facilitate gas exchange?
A) It is covered with surfactant to accelerate gas exchange.
B) Its thickness prohibits the alveoli from pulling away from the capillary.
C) All three surfaces are kept moist through interstitial fluid exchange.
D) The surface area is increased with this membrane.
E) Epithelial and endothelial cells share a common basement membrane.
Ans: E) Epithelial and endothelial cells share a common basement membrane.
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In general, what is the relationship between a country's ecological footprint and its overall standard of living?
A. As the standard of living increases, so does the ecological footprint. B. As the standard of living decreases, the ecological footprint increases. C. It depends on country—in developed countries, the ecological footprint and standard of living are positively correlated; in developing countries, they are negatively correlated. D. It depends on the country—in developing countries, the ecological footprint and standard of living are positively correlated; in developed countries, they are negatively correlated. E. None of the above.
All cellular organisms can be placed into one of three ________, which include the Bacteria, Archaea, and the Eukarya.
Fill in the blank(s) with the appropriate word(s).
Identify the parts of a typical fungal body plan and briefly explain the function of each of the structures you identified. What will be an ideal response?
In a hypothetical situation, a bacterium lives on the surface of a leaf, where it obtains nutrition from the leaf's nonliving, waxy covering while inhibiting the growth of other microbes that are plant pathogens
If this bacterium gains access to the inside of a leaf, however, it causes a fatal disease in the plant. Once the plant dies, the bacterium and its offspring decompose the plant. What is the correct sequence of ecological roles played by the bacterium in the situation described here? 1. nutrient recycler 2. mutualist 3. commensal 4. pathogen 5. primary producer A) 1, 3, 4 B) 2, 3, 4 C) 2, 4, 1 D) 1, 2, 5