Which of the following refers to the level of depolarization at which an action potential will be triggered?
A. resting potential
B. membrane potential
C. cationic potential
D. refractory potential
E. threshold potential
E. threshold potential
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Comparative genome studies show that humans and _____________________ shared a common ancestor approximately 5.4 to 6.3 million years ago
Fill in the blank(s) with correct word
Taste buds are ____
a. really just modified sensilla b. found only on the tongue in humans c. collections of papilla that respond to different stimuli d. small capsules of cells, each with a pore at the top though which sensory hairs project and interact with environmental molecules e. able to respond to all flavors simultaneously through sensory hairs that connect to papillae
ATP is formed when ____ the thylakoid
compartment.
a. hydrogen ions enter b. hydrogen ions leave c. electrons leave d. electrons enter e. water is split in
Which of the following statements is
INCORRECT about eukaryotic chromosomes?
a. The number of chromosomes varies from one species to another. b. All eukaryotes have the same system of autosomes and sex chromosomes. c. A chromosome consists of DNA associated with histone proteins. d. After duplication, all paired chromosomes are attached at the centromere. e. After duplication, each chromosome consists of two sister chromatids.