In chordates, the ____ is a digestive system structure just posterior to the mouth
a. pharynx
b. neural crest
c. oral hood
d. notochord
e. cranium
ANSWER: a
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Fill in the blank(s) with correct word
Lactose transport by membrane proteins occurs under conditions in which the concentration of lactose inside the cell is higher than the concentration outside the cell. What type of transport is used to move lactose into the cell?
a. Simple diffusion b. Active transport c. Osmosis d. Facilitated diffusion
A plant performing photosynthesis will produce ____ and consume _____.
A. water; carbon dioxide B. water; oxygen C. oxygen; carbon dioxide D. carbon dioxide; oxygen E. carbon dioxide; water
Which of the following is an upper respiratory tract disease?
Select one: a. pharyngitis b. acute bronchitis c. asthma d. pneumonia e. cystic fibrosis