Ovulation occurs by a surge in the secretion of what hormone?
A. estrogen hormone
B. luteinizing hormone
C. follicle stimulation hormone
D. progesterone hormone
E. hCG hormone
B. luteinizing hormone
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Heteroplasmy is associated with inheritance patterns involving
A. nuclear. B. paternal DNA. C. chloroplasts. D. ribosomes. E. imprinted.
The attraction between Na+ cations and Cl- anions form ____ that hold the ions together in the compound NaCl
a. polar covalent bonds b. van der Waals forces c. ionic bonds d. hydrogen bonds e. nonpolar covalent bonds
The hormone calcitonin is secreted by the ______ gland.
a. pituitary
b. adrenal
c. thyroid
d. parathyroid
In stratified epithelium, such as the epidermis of the skin, cell division occurs
A) in the cells at the base layer only. B) in the surface cell layer only. C) throughout all the layers. D) in the basement membrane only.