Chap. 13

Flashcards about evolutionary biology, microevolution, and Darwin's model.

Microevolution

Change within a population or species, not the generation of new species.

Microevolution

Alleles or traits conferring a disease state are under its influence, giving it clinical significance.

Lamarckian evolution

The inheritance of acquired traits

Lamarckian Model

Populations or species want to evolve or adapt to their environment.

Lamarck's concept of inheritance

Organisms change their biology during their lifetime, and the change affects what they give to the next generation.

Lamarck's explanation of adaptation

Organisms use certain features more, causing them to enlarge, and this change is passed on to the next generation.

Observation one of Darwin's model

Individuals have inheritable variations within a population.

Alleles

Variations of genes that individuals have.

Random mutation

The source of new alleles.

Observation two of Darwin's model

Individuals reproduce more than the environment can support.

Malthusian

Radical overpopulation and a bare-knuckles fight for resources.