Why are the bones of young children much more flexible than those of the elderly?
What will be an ideal response?
Bones of children are not completely calcified, with a higher ratio of more flexible organic fibers. Bones in the elderly are more completely calcified, which gives the characteristic of rigidity.
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DNA differs from RNA in that:
a. DNA is double stranded b. DNA contains the base uracil c. DNA contains the base adenine d. All of the above
Answer the following statements true (T) or false (F)
1. Seminal fluid is slightly acidic to protect the sperm from the alkaline condition of the female reproductive tract. 2. The penis contains two separate columns of erectile tissue: one corpus spongiosum and one corpus cavernosa. 3. The scrotum contains the testes, epididymis, the lower part of the ductus deferens, and the beginning of the spermatic cords. 4. The female gonads are the ovaries. 5. In the female, the gonads produce ova.
The ________ test is often used to estimate the glomerular filtration rate
A) inulin B) glucose tolerance C) CBC or complete blood count D) specific gravity E) creatinine clearance
Identify the thin protective mucous membrane composed of stratified squamous epithelium with numerous goblet cells
a) A and B b) B and D c) C and A d) D and C e) B and E