Which of the following filters supplements the action of bacteria and is used in large, specialized tanks?
a. outside filter c. canister filter
b. nitrifier filter d. undergravel filter
B
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The events of respiration are
A) ventilation, external and internal respiration, and cellular respiration. B) inhaling and exhaling. C) inflating and deflating alveoli. D) delivering carbon dioxide to cells and removing oxygen from cells.
The rough endoplasmic reticulum is most abundant in cells specialized for protein secretion, whereas smooth endoplasmic reticulum is abundant in cells that specialize in lipid metabolism
Indicate whether the statement is true or false
Vitamin D must be activated by the ____________________ and ____________________
Fill in the blank(s) with correct word
The hormones that come from the posterior pituitary
A. are synthesized there and are released upon signals from the anterior pituitary. B. are synthesized in the hypothalamus and are released from the posterior pituitary when nerve signals arrive. C. are synthesized in the anterior pituitary and are transported to and from the posterior pituitary by the primary and secondary plexus. D. are synthesized in the posterior pituitary and released by the anterior pituitary by way of the hypophyseal portal system.