Giardia lamblia, spread by water contaminated with feces, forms resistant ____
a. endospores
b. exospores
c. cysts
d. sporangia
e. trophozoites
ANSWER: c
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Fall leaf color on deciduous trees is a result of
A. the production of more accessory pigments because of the cooler temperatures. B. the reduction in the production of accessory pigments. C. cessation of chlorophyll production, which allows the accessory pigments to be revealed. D. the increased angle of the sun during the fall, which reflects more of the accessory pigments.
Due to high rates of water loss, all woody plants must produce more of which type of tissue?
A. secondary xylem B. secondary phloem C. cork D. bark
Specialized lymphatic capillaries known as _____ absorb dietary fats in the small intestine.
What will be an ideal response?
An example of a protein that is an electrogenic pump, uniport and an active transport is:
a. H+ pump b. Na+-K+ pump c. H+- sucrose pump d. glucose transporter e. cysteine transporter