5 Written questions
5 Matching questions
- natural selection
- homologous traits
- reproductive isolation
- a a relationship between two populations in which there is no gene flow between them
- b carries genes and appears during cell division
- c structural similarities derived from two species with independent ancestors. Eg. a bat's wing and a human's hands
- d refers to cells that have pairs of homologous chromosomes, where one chromosome of each pair is inherited from each parent. All primates are diploid
- e the process that produces adaptation
5 Multiple choice questions
- a hypothesis that speciation can result from selective pressures favoring different phenotypes within a population without geographic isolation as a factor
- selection pressuresd that favor average phenotypes. Stabilizing sleection reduces the amount of variation in the population but doesn't alter the mean value of the trait.
- driving force behind sympatric speciation extreme values for a trait are favored over intermediate values. E.g.: large nose rather than medium sized nose
- a FEATURE of an organism CREATED by the process of natural selection.
- the form and structure of an organism
5 True/False questions
character displacement → the process that produces adaptation
pleiotropy → the shown trait
continuous variation → ex: height in humans, birthweight
genetic drift → the transfer of alleles of genes from one population to another
founder effect → occurs when a new colony is started by a few peope from the original population. Not much diversity, usually mutations.