Adenylate cyclase B (ACB) is normally expressed in prestalk cells, but is upregulated in the prespore region of acg null structures.

TLS Online TPP Program

#Id: 5855

#Unit 10. Ecological Principles

Earlier arriving species tend to be r-selected species, which are better dispersers, whereas later arriving species are generally K-selected species, which are better competitors.

TLS Online TPP Program

#Id: 5856

#Unit 10. Ecological Principles

TLS Online TPP Program

#Id: 5857

#Unit 10. Ecological Principles

The number of species should decrease with increasing distance of the island from the mainland - The species distance hypothesis

TLS Online TPP Program

#Id: 5858

#Unit 10. Ecological Principles

The number of species should increase with increasing island size. This is also known as the species-area hypothesis.

TLS Online TPP Program

#Id: 5859

#Unit 10. Ecological Principles

Larger populations are more resistant to extinctions.  Greater ranges of habitats promote increased speciation rates.

TLS Online TPP Program

#Id: 5860

#Unit 10. Ecological Principles

Fast generation and high mutation rate in tropical leads to greater evolution rate.