Which of the following is NOT produced in the ovaries?
a. oocytes
b. gametes
c. estrogen
d. endometrium
e. progesterone
ANSWER: d
Biology & Microbiology
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Therapeutic cloning involves the use of _______________
a. embryonic stem cells b. adult stem cells c. genetic markers d. both embryonic and adult stem cells
Biology & Microbiology
The primary pacemaker of the heart is the
a. bicuspid valve. b. tricuspid valve. c. aorta. d. sinoatrial node.
Biology & Microbiology
____ is the site of protein synthesis
A. Ribosomes B. Nucleus C. Mitochondria D. Smooth endoplasmic reticulum
Biology & Microbiology
In order to work best, enzymes ____.
A. always need coenzymes B. randomly grab surrounding molecules C. need low pH D. need high temperatures E. need set environmental conditions, specific for each enzyme
Biology & Microbiology