Proteus species often cause Urinary Tract Infections
a. true
b. false
a. true
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The wood of gymnosperms is composed of ______________, and the wood of angiosperms (e.g., a cherry blossom) can consist of ______________________
A. tracheids; fibers and vessel elements B. fibers and tracheids; vessel elements C. vessel elements and fibers; tracheids D. tracheids and vessel elements; fibers
Which plasma membrane component is always found on the exterior surface of cells and allow cells to recognize each other?
a. Carbohydrates b. Enzymes c. Cholesterol d. Glycolipids
Virus receptors are often not distributed uniformly over the surface of host cells, but are instead concentrated in lipid rafts.
Answer the following statement true (T) or false (F)
The production of uric acid is advantageous to birds because uric acid __________.
a. is very soluble in water and takes very little energy to produce b. has low toxicity, requires little water to excrete, and can be safely stored as an embryo develops in an egg c. contributes to the production of the egg shell and can thus serve two purposes d. takes less energy to produce than urea e. has low toxicity, requires little water to excrete, can be safely stored as an embryo develops in an egg, and takes less energy to produce than urea