Which of the following is considered to be the safest drinking water source?
A- a river
B- a lake
C- the groundwater
D- the ocean
E- melted snow
C- Groundwater
Biology & Microbiology
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In times of stress, the sympathetic nervous system decreases blood pressure
Indicate whether the statement is true or false.
Biology & Microbiology
In the light-independent reactions, _____
a. carbon dioxide is fixed b. ATP forms c. sugars form d. CO2 accepts electrons e. [ATP forms] and [sugars form ] f. [carbon dioxide is fixed ] and [sugars form ]
Biology & Microbiology
What is the central control organ of a nervous system?
A. Notochord B. Brain C. Nerve cord D. Ganglia E. Nerve
Biology & Microbiology
Both chemiosmosis and photophosphorylation involve (electron/proton/hydroxyl) gradients.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology