The blood-brain barrier is permeable to which of the following species?
A) oxygen
B) carbon dioxide
C) glucose
D) all of these
D
Environmental & Atmospheric Sciences
You might also like to view...
The exact carrying capacity of the earth is 50 billion people.
Answer the following statement true (T) or false (F)
Environmental & Atmospheric Sciences
A small lithospheric block with characteristics quite different from those of surrounding rocks;
these features commonly were accreted to continents during orogenies:a. terranes d. continental rifts b. therapsids e. organic reefs c. subduction zones
Environmental & Atmospheric Sciences
During the summer months at the North Pole, the sun does not set for ____
A) 2 months B) 24 hours C) 6 months D) 4 months
Environmental & Atmospheric Sciences
Inclined surfaces that form the boundaries of landforms are known as
A) catchment. B) slopes. C) free face. D) regolith.
Environmental & Atmospheric Sciences