Epidermal cells secrete a coating called the ____ that protects the plant from water loss and attacks by microbes
a. cuticle
b. protoplast
c. stoma
d. trichome
e. bark
ANSWER: a
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The grouping or classification of species is termed ______.
A. genus B. kingdom C. taxonomy
Statoliths, particles that move in the direction gravity pulls them, are typically ____ in plants
a. amyloplasts b. calcium carbonate crystals c. nuclei d. vacuoles
e. hormonesCnidarians are the only animal phylum to display ________, meaning that their bodies can be divided any way through the center point to yield two even halves. all other adult animals display _______, meaning that their bodies can be only sliced lengthwise through the midline to produce two even halves.
Fill in the blank(s) with the appropriate word(s).
Which of the following is a hormone that regulates the reabsorption of sodium by the distal convoluted tubules and collecting ducts?
A) angiotensin B) ANP C) ADH D) aldosterone