The rapid expansion of angiosperms late in the
Mesozoic era appears to be related to their
coevolution with
a. dinosaurs.
b. gymnosperms.
c. insects.
d. mammals.
e. birds.
C
You might also like to view...
Excitatory postsynaptic potentials are generally caused by _______channels opening, while inhibitory postsynaptic potentials may be caused by _______ channels opening.
a. Na+; Cl– b. K+; Cl– c. Ca2+; K+ d. Cl–; K+
A degenerative brain disorder transmitted by cannibalism is called ________.
A. scrapie B. herpes C. Creutzfeldt-Jakob disease D. kuru
The pancreatic secretions governing glucose
levels are precisely controlled by a. neural connections to the pancreas. b. the blood-brain barrier. c. cooperative interactions. d. feedback mechanisms. e. releasing factors
How many different species of Plasmodium cause malaria?
a. two b. three c. four d. five