The means by which a cell transports large molecules out of the cell is called
A) diffusion.
B) endocytosis.
C) active transport.
D) exocytosis.
E) phagocytosis.
D) exocytosis.
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Human somatic cells contain only one pair of
A. chromosomes. B. autosomes. C. homologous chromosomes. D. sex chromosomes.
The ________ flexes the forearm.
A. gluteus maximus B. triceps brachii C. biceps brachii D. frontalis
The ________ is the pacemaker that initiates each heart beat
A) sinoatrial (SA) node B) atrioventricular (AV) node C) sympathetic division of the nervous system D) cardiac conduction system E) autonomic nervous system
Which statement is true regarding the anatomy of the nerves in the sympathetic nervous system?
A. A long preganglionic neuron leaves the spinal cord from the lumbar and sacral regions and synapses with the post ganglionic neuron at the sympathetic chain of ganglia just inside the vertebral column. B. A short preganglionic neuron leaves the spinal cord from the cervical region and synapses with the post ganglionic neuron at the sympathetic chain of ganglia just outside the vertebral column. C. A short preganglionic neuron leaves the spinal cord from the thoracic and lumbar regions and synapses with the post ganglionic neuron at the sympathetic chain of ganglia just inside the vertebral column. D. A short preganglionic neuron leaves the spinal cord from the thoracic and lumbar regions and synapses with the post ganglionic neuron at the sympathetic chain of ganglia just outside the vertebral column.