Hormones are released from one cell and act on other cells in distant organs and are thus an example of ____.
A. paracrine signaling
B. intercellular signaling
C. endocrine signaling
D. contact-to-contact signaling
E. autocrine signaling
C. endocrine signaling
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The types of bonds found in nucleic acids are:
A. phosphodiester bonds. B. peptide bonds. C. ionic bonds. D. non-polar covalent bonds.
Which of the following is considered an opportunistic pathogen?
A) Toxoplasma gondii B) Trichomoniasis vaginalis C) Candida albicans D) Plasmodium vivax
Over ________ species of fungi have been named with an estimated ________ still to be named
a. 5,000, 15,000 b. 280, 1,000 c. 70,000, 1 million d. 20,000, 5 million e. 200,000, 2 million
Several human disorders are the result of abnormalities in chromosome number. The most common are trisomies of chromosome numbers________ ,________ , or _________ , or abnormalities in the number of sex chromosomes.
Fill in the blank(s) with the appropriate word(s).