Organelles used for locomotion by protozoans are
What will be an ideal response?
cilia, pseudopods, flagella
NOT axial filaments
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The level of depolarization at which an action potential will be triggered is referred to as the
A. resting potential. B. membrane potential. C. cationic potential. D. refractory potential. E. threshold potential.
The accompanying figure shows areas of referred pain that indicate an internal organ is damaged. Which letter
corresponds to heart damage? a. A b. B c. C d. D e. E
Birds differ from earlier vertebrates by
a. their lack of scales. b. producing land eggs. c. the ability to maintain a constant body temperature through metabolic activities. d. the ability to fertilize eggs internally. e. their possession of a dorsal nerve cord.
________ are events that bring about death that are not related to the density of individuals in a population
Fill in the blank(s) with correct word