A halotolerant facultative anaerobic bacterium would grow BEST in a ________ environment
A) oxygen depleted saline
B) oxygenated saline
C) oxygen depleted non-saline
D) oxygenated non-saline
Answer: D
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The primary structural molecule composing a cell membrane is a(n)
A. sugar molecule attached to a protein. B. phospholipid molecule. C. protein molecule. D. enzyme molecule. E. cholesterol molecule.
Water tension in a transpiring plant
a. is exerted on a continuous column of water throughout the plant. b. is the result of the hydrogen bonding of water molecules. c. results in negative pressure in the xylem. d. exerts a pull on water molecules from leaves to roots. e. fits all of these descriptions
Which of the following statements is false?
a. Neurons in the brain can interpret incoming action potentials only in certain ways. b. Optic nerve impulses can only be interpreted as light. c. Some sensory receptors do not convert a stimulus to nerve impulses. d. The stronger the stimulus, the more action potentials are generated. e. A strong stimulus activates many adjacent receptors, thereby increasing the number of action potentials and the level of awareness for the stimulus.
What is the first milk that is produced after birth called?
A. Colostrum B. hCG C. Chorionic lactase D. Allantoicase E. Prolactase