In the midbrain, descending tracts going from the cerebrum to the spinal cord are called the
A) cerebral peduncles.
B) red nuclei.
C) superior colliculus.
D) substantia nigra.
E) tegmentum.
Answer: A) cerebral peduncles.
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Which structure is not associated with the secretion of proteins produced by ER?
a. golgi complex. b. smooth ER. c. transport vesicles. d. lysosomal membrane. e. plasma membrane.
The stratum basale
A. contains cells that undergo meiosis to form new epidermal cells. B. has a mixture of living and dead cells - mostly dead. C. is easily shed when you rub your hands together. D. contains many blood vessels that nourish the epidermis. E. contains cells that undergo mitosis to form new epidermal cells.
Which of the following statements is not a tenet of modern cell theory?
A) All organisms are composed of cells and cell products. B) An organism's structure and all of its functions are ultimately due to the activities of its cells. C) All cells occupy space. D) The cell is the basic structural and functional unit of life. E) All cells come only from preexisting cells.
Endocrine glands secrete
A. hormones. B. digestive enzymes. C. saliva. D. sweat. E. All of the choices are correct.