Match the following items with the correct phrases.
_______1. A ____________________ is a membrane-bound vesicle containing only an ingested object.
_______2. The directed migration of leukocytes is known as ____________________.
_______3. A ____________________ is a membrane-bound vesicle containing an ingested object and digestive enzymes.
_______4. ____________________ is an increase in the diameter of blood vessels.
_______5. ____________________ is a process by which phagocytosis is facilitated by the deposition of antibodies or complement fragments onto the surface of particles or cells.
A. chemotaxis
B. opsonization
C. phagolysosome
D. phagosome
E. vasodilation
1. D. phagosome
2. A. chemotaxis
3. C. phagolysosome
4. E. vasodilation
5. B. opsonization
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In describing the initiation and transmission of action potentials in neurons, it would be INCORRECT to say that
A. the rate of transmission of an action potential is directly related to the diameter of the axon. B. information about the intensity of a stimulus is conveyed by changes in the size of the action potential generated. C. the resting potential is maintained by differential ion permeabilities and the sodium-potassium pump. D. a stimulus to the neuron can either depolarize or hyperpolarize the neuronal membrane.
The bones in bat wings and those in the human arm are ____
a. homologous structures b. comparative structures c. analogous structures d. repetitive structures e. vestigial structures
Flowering plants appeared in the fossil record in the:a
Tertiary period. b. Cenozoic era. c. Paleozoic era. d. Late Cretaceous period. e. Jurassic and Lower Cretaceous periods.
What is the name of the primary muscle involved in human breathing?
a. the diaphragm b. the internal intercostals c. the external intercostals d. the abdominal wall muscles