In vertebrates, the central nervous system (CNS) consists of the ____
a. brain and spinal cord
b. brain and gray matter
c. spinal cord and gray matter
d. brain and reflexes
e. spinal cord and nerves
ANSWER: a
You might also like to view...
True or False: it is likely that the first photosynthetic organisms utilized chlorophyll, demonstrating the ancient origins of modern photosynthesis
A. true B. false
Sometimes homologous chromosomes fail to separate normally during meiosis I, a process called ____
Fill in the blank with the appropriate word.
The members of ___________ include dinoflagellates, apicomplexans, and ciliates.
Fill in the blank(s) with the appropriate word(s).
Which of the following is true regarding hemoglobin?
a. It is a lipid. b. It contains iron. c. It raises the concentration of oxygen in the blood. d. It is present in all vertebrates and invertebrates. e. It is identical to hemocyanin.