Succession is affected by the distance that dispersing organisms have to travel from undisturbed mainland areas. 

TLS Online TPP Program

#Id: 2249

#Unit 11. Evolution and Behavior

Chromosome Evolution

Fissions and fusion is the most common way for the number of chromosomes to change.

Humans have 23 pairs of chromosomes, but all of the other great apes have 24 pairs. At some point since our lineage split from that of chimpanzees, two chromosomes fused

TLS Online TPP Program

#Id: 2250

#Unit 11. Evolution and Behavior

A phenotypic distribution is determined by genetic and environmental factors.

TLS Online TPP Program

#Id: 2251

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 2252

#Unit 11. Evolution and Behavior

Adaptive landscape- A surface in multidimensional space that represents the mean fitness of a population.

TLS Online TPP Program

#Id: 2253

#Unit 11. Evolution and Behavior

Large changes in quantitative traits can occur by the evolution of allele frequencies without the addition of new mutations.

TLS Online TPP Program

#Id: 2254

#Unit 11. Evolution and Behavior

Frequency-dependent selection,

1.    Positive frequency

2.    Negative frequency