Which of the following statements is not true concerning the central nervous system?
A. The central nervous system is made up of the spinal cord and the brain.
B. Both the brain and spinal cord are protected by meninges.
C. The spaces around the brain and spinal cord are filled with fluid.
D. The brain and spinal cord contain only white matter: myelinated axons that run together in bundles.
E. Both the brain and spinal cord are protected by bone.
Answer: D
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a. steroid hormones are not derived from organic molecules b. steroid hormones do not bind to plasma membrane receptors c. steroid hormones use a second messenger system
d. steroid hormones do not travel in the blood e. steroid hormones do not require receptors to function
Worldwide human population growth has been exponential since the Industrial Revolution.
Answer the following statement true (T) or false (F)
Genetic drift that occurs in small, new colonies is called ________
Fill in the blank(s) with correct word
Which of the following fungi is an obligate intracellular parasite?
A. Coccidioides immitis B. Blastomyces dermatitidis C. Microsporidium D. Candida albicans E. Mucor species