Shared Flashcard Set

Details

Evolution Flash Cards
For bio class
18
Biology
9th Grade
01/24/2014

Additional Biology Flashcards

 


 

Cards

Term
Evolution
Definition
change in the gene pool of a population from generation to generation by such processes as mutation, natural selection, and genetic drift
Term
Natural Selection
Definition
the process by which forms of life having traits that better enable them to adapt to specific environmental pressures, as predators, changes in climate, or competition for food or mates, will tend to survive and reproduce in greater numbers than others of their kind, thus ensuring the perpetuation of those favorable traits in succeeding generations.
Term
Artificial selection
Definition
a process in the breeding of animals and in the cultivation of plants by which the breeder chooses to perpetuate only those forms having certain desirable inheritable characteristics.
Term
Sexual Selection
Definition
a special type of natural selection in which the sexes acquire distinct forms either because the members of one sex choose mates with particular features or because in the competition for mates among the members of one sex only those with certain traits succeed.
Term
Darwin
Definition
He researched changes in species, and worked on the theory of evolution. In 1859 Darwin published 'On the Origin of Species by Means of Natural Selection'.
Term
Lamarck
Definition
Lamarck talked about two main themes in his biological work. The first was that the environment gives rise to changes in animals. He cited examples of blindness in moles, the presence of teeth in mammals and the absence of teeth in birds as evidence of this principle. The second principle was that life was structured in an orderly manner and that many different parts of all bodies make it possible for the organic movements of animals.
Term
Comparative Anatomy
Definition
it is the study of similarities and differences in the anatomy of different species and is related to evolutionary biology.
Term
Comparative Biochemistry
Definition
The study of the evolution of chemical processes among different biological classification
Term
comparative embryology
Definition
is the branch of embryology that compares and contrasts embryos of different species.
Term
Biogeography
Definition
It is the study of the distribution of species and ecosystems in geographic space and through geological time
Term
Gene flow
Definition
it is the transfer of alleles or genes from one population to another.
Term
Genetic drift
Definition
it is the change in the frequency of a gene variant (allele) in a population due to random sampling.
Term
Overproduction of offspring
Definition
If overproduction occurs most will not survive due to resources.
Term
Genetic variation
Definition
It provides the genetic material for natural selection. Genetic variation is done by and through mutation. Variation Provides for better and more capable species.
Term
Theory
Definition
a proposed explanation whose status is still conjectural and subject to experimentation.
Term
Origin of Species
Definition
The book in which Darwin wrote about evolutionary,his research and origin of species.The foundation of evolutionary biology.
Term
Bottleneck effect
Definition
When the population becomes extinct as numbers plummet
Term
Mutation
Definition
The alteration in genetic material.
Supporting users have an ad free experience!