How many chromosomes do human somatic cells contain?
A) 12
B) 23
C) 46
D) 92
E) 6
C
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The plasma concentration of a particular substance at which its Tm is reached and the substance first starts appearing in the urine is known as the ____________________
Fill in the blank(s) with correct word
Answer the following questions true (T) or false (F)
1. The hypothalamic-hypophyseal portal system is a special blood supply that provides a connection between the hypothalamus and the pituitary gland. 2. Hypersecretion of growth hormone (GH) that occurs before epiphyseal plates close results in a condition known as acromegaly. 3. The follicle cells of the thyroid gland produce thyroid hormones while the parafollicular cells produce parathyroid hormone (PTH).
The word ________ implies an imaginary flat surface passing through the body.
A. section B. figure C. direction D. tangent E. plane
Oxygen has an atomic number of eight. When two oxygen atoms come together, they form a(n) ________ bond.
A. Van der Waals B. hydrogen C. polar covalent D. nonpolar covalent E. ionic