Macronutrients are elements or small molecules that are needed in only trace amounts
Indicate whether the statement is true or false
FALSE
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Primary consumers eat ________.
A. other primary consumers B. tertiary consumers C. producers D. secondary consumers
When biological membranes are frozen and then fractured, they tend to break along the middle of the bilayer. The best explanation for this is that _____
A) the integral membrane proteins are not strong enough to hold the bilayer together B) water that is present in the middle of the bilayer freezes and is easily fractured C) hydrophilic interactions between the opposite membrane surfaces are destroyed on freezing D) the carbon-carbon bonds of the phospholipid tails are easily broken E) the hydrophobic interactions that hold the membrane together are weakest at this point
Which of the following cannot be classified as a genetic disease?
a. a genetic predisposition to develop an allergy b. Huntington disease c. sickle cell anemia d. cystic fibrosis e. sickle cell trait
The hazardous materials team has deemed it safe for you to enter and remove patients from an office building that exploded. As you are moving the patients, it is MOST important to:
A) provide only immediate lifesaving care inside the building. B) quickly identify the patients who appear to be the most critical. C) remain alert to the possibility of a secondary explosive device. D) get them out of the building before you begin the triage process.