Underground water supplies within porous rock are called ________
A) chambers
B) watersheds
C) aquifers
D) wasserlagen
C
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Which type of nutrient can pass across epithelial cells without any expenditure of ATP?
A. iron B. calcium C. protein D. fat E. magnesium
Expression of homeotic genes
A) assigns a unique identity to each segment. B) defines anterior and posterior ends of the fly. C) controls the expression of the segment polarity genes. D) subdivides the embryo into a precise number of segments.
Which of the following material would NOT normally be filtered from the blood at the glomerulus?
a) water b) urea c) protein d) glucose e) sodium ions
In a human female reproductive system, the ________
A) hymen partly covers the cervical opening B) vagina secretes hormones that help maintain the uterine lining C) labia minora are a pair of thick, fatty ridges that protect the entire genital region D) outer features are collectively called the vulva