Practice Questions

TLS Online TPP Program

#Question id: 11338

The most plausible hypothesis to explain why species richness is higher in tropical than in temperate regions is that

#Unit 10. Ecological Principles

tropical communities are younger.
tropical regions generally have more available water and higher levels of solar radiation.
higher temperatures cause more rapid speciation.
diversity increases as evapotranspiration decreases

More Questions

#Question id: 1682

#Unit 4. Cell Communication and Cell Signaling

Extensive allelic polymorphism is found in MHC:

#Question id: 1683

#Unit 4. Cell Communication and Cell Signaling

Expression of MHC genes is:

#Question id: 1684

#Unit 4. Cell Communication and Cell Signaling

What are the molecules mediating signal transduction following antigen binding to cell surface immunoglobulin on a B-cell called?

#Question id: 1685

#Unit 4. Cell Communication and Cell Signaling

The TCR for antigen is:

#Question id: 1686

#Unit 4. Cell Communication and Cell Signaling

A hapten is best defined as being:

#Question id: 1687

#Unit 4. Cell Communication and Cell Signaling

A discontinuous antigen epitope is: