Estuaries are an example of:
a. niches.
b. populations.
c. ecosystems.
d. the abyssal zone.
e. pelagic systems.
C
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Answer the following statements true (T) or false (F)
1. The penicillin molecule is an example of a hapten. 2. Autoimmune diseases are always the result of type II hypersensitivity reactions. 3. With respect to a particular pathogen, detection of antibodies in a patient's blood provides better proof of current infection than does detection of antigens. 4. If a person's immune system is not functioning properly, that person is said to be immunocompetent. 5. An IgM molecule can bind to 10 antigenic determinants, but they would all have to be the antigenic determinant that stimulated the production of that IgM molecule.
Two extant species of coelacanths and six species of lungfish are members of the ___ lineage
a. Petromyzontoidea b. Chondrichthyes c. Actinopterygii d. Myxinoidea e. Sarcopterygii
You are working with a patient who thinks they have been poisoned. Their blood pressure is elevated and tissue biopsies of the patient's liver show extra sodium channels in the kidneys. You suspect that the patient has been given
A. epinephrine. B. aldosterone. C. follicle-stimulating hormone (FSH). D. insulin. E. testosterone.
In the breakdown of glucose, a phosphorylated
six-carbon compound is split into two three-carbon compounds, which are named a. PGAL. b. pyruvate. c. acetyl-CoA. d. lactate. e. acetaldehyde.