Practice Questions

TLS Online TPP Program

#Question id: 12587

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.
Biodiversity increases as evapotranspiration decreases.

More Questions

#Question id: 2934

#Unit 2. Cellular Organization

Cyclin D/Cdk4 functions during:

#Question id: 2935

#Unit 2. Cellular Organization

Breakdown of the nuclear envelope during mitosis is accomplished by CDK-dependent phosphorylation of lamins:

#Question id: 2936

#Unit 2. Cellular Organization

The stable attachment of sister kinetochores to microtubules emanating from opposite spindle poles is called:

#Question id: 2937

#Unit 2. Cellular Organization

Separase initiates sister chromatid segregation at anaphase by cleaving:

#Question id: 2938

#Unit 2. Cellular Organization

Which of the following inhibit(s) cyclin A/Cdk2 activity?

#Question id: 2939

#Unit 2. Cellular Organization

Failure of which cell-cycle checkpoint is most likely to result in non-dysjunction?