Cells carry out three major types of work; which of the following involves nutrient uptake and waste elimination?
A. Chemical work
B. Mechanical work
C. Transport work
D. None of the choices are correct.
Answer: C
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It has been hypothesized that fungi and plants have a mutualistic relationship because plants make sugars available for the fungi's use. What is the best evidence in support of this hypothesis?
A) Fungi survive better when they are associated with plants. B) Radioactively labeled sugars produced by plants eventually show up in the fungi with which they are associated. C) Fungi associated with plants have the ability to undergo photosynthesis and produce their own sugars, while those not associated with plants do not produce their own sugars. D) Radioactive labeling experiments show that plants pass crucial raw materials to the fungus for manufacturing sugars.
Which of the following has been associated with a form of liver cancer?
A. Human T-cell lymphotropic virus B. Hepatitis A virus C. Human papilloma virus D. Hepatitis B virus
A taxon that includes only birds and bats, two clades of vertebrates capable of flight, is considered ____
a. paraphyletic b. polyphyletic c. monophyletic d. complete e. incomplete
How far an animal will go to forage can be influenced by whether predators are around.
Answer the following statement true (T) or false (F)