Osteoporosis is when what happens?
What will be an ideal response?
Answer: Weakening of bones due to calcium defficiancy making the bone "porus"
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When the Catabolite Activator Protein binds to its binding site in DNA, it
A. bends the DNA. B. eliminates the need for a sigma factor on the part of RNA polymerase. C. promotes the assembly of other transcription factors at the promoter. D. displaces repressors.
A dance that recruits other bees into foraging directly
toward the sun is indicated by a. A. b. B. c. C. d. D. e. E.
A growing hyphae experiences which of the following?
a. transport by vesicles of enzymes from the Golgi apparatus to the hyphal tip b. uptake of water by osmosis c. extension of the hyphal tip d. transport by vesicles of cell-wall materials e. all of these
The characteristic that separates cartilaginous fishes from lampreys is
A) jaws. B) four-chambered hearts. C) bony skeletons. D) sucker-like mouths lined with teeth. E) lungs supplemented by air sacs.