All of the following are good barriers to invasion by microbes EXCEPT:
A. intestinal bacteria
B. eye secretions
C. mucus membranes
D. broken skin
Ans: D. broken skin
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What is the term for metabolic pathways that release stored energy by breaking down complex molecules?
A) anabolic pathways B) catabolic pathways C) fermentation pathways D) thermodynamic pathways E) bioenergetic pathways
An ambulance is rushing a man to the emergency room with a knife wound. The man was stabbed in the upper-right side of his abdomen and has a large amount of internal bleeding. What vital organ has most likely been damaged by the knife wound?
A. heart B. liver C. pancreas D. gall bladder E. appendix F. stomach Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about which organ is in the upper right side of the abdomen and has a lot of blood flow? What other information is related to the question? Choose Answer · Given what you now know, what information is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
In living systems molecules involved in hydrogen bonding almost always contain either oxygen or nitrogen or both. How do you explain this phenomenon?
A) Oxygen and nitrogen are elements found in both nucleic acids and proteins. B) Oxygen and nitrogen are elements with very high attractions for their electrons. C) Oxygen and nitrogen are elements found in fats and carbohydrates. D) Oxygen and nitrogen were both components of gases that made up the early atmosphere on Earth.
Which of the following morphologies are seen among the Chloroplastida?
A. Sheet-like B. Unicellular C. Colonial D. Filamentous E. All of the choices are correct.