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TLS Online TPP Program

#Question id: 343

Assume that acid rain has lowered the pH of a particular lake to pH 5.0. What is the hydroxide ion concentration of this lake?

#1. Molecules and their Interaction Relevant to Biology

  1. 1 × 10^-9 mol of hydroxide ions per liter of lake water

  2. 1 × 10^-5 mol of hydroxide ions per liter of lake water

  3. 5.0 M hydroxide ion

  4. 5.0 × 10^-5 mol of hydroxide ions per liter of lake water

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TLS Online TPP Program

#Question id: 11968

#7. System Physiology – Animal

 Upon activation by stomach acidity, the secretions of the parietal cells ________.
TLS Online TPP Program

#Question id: 21240

#7. System Physiology – Animal

A visual exam in an 80-year-old man shows he has a reduced ability to see objects in the upper and lower quadrants of the left visual fields of both eyes but some vision remains in the central regions of the visual field. The diagnosis is
TLS Online TPP Program

#Question id: 19202

#12. Applied Biology

Acoustic wave or piezoelectric biosensor is a type of a biosensor which employs
TLS Online TPP Program

#Question id: 1570

#4. Cell Communication and Cell Signaling

Which cells and which signaling molecules are responsible for initiating an inflammatory response?
TLS Online TPP Program

#Question id: 10719

#10. Ecological Principles

Five Hypotheses Explain How Species Richness Affects Community Services, Following statement are given
A) Community services decline with decreased species richness in a stepwise fashion.
B) Species that play the same roles in a community can compensate for each other if some are lost under particular conditions
C) Species richness declines even slightly from its natural levels, community services are reduced immediately
D) Community services change as the number of species increases or decreases, but that the direction of change is not predictable.