Evolution #1
Similar structures that evolved from a common ancestor such as bones that are similar in anatomy but not in functionality
Homologous Structures
This term refers to how often different traits (alleles) occur within a gene pool.
Allele frequency
A group of interbreeding organisms in the same area. (a singular species in the same area interacting with one another)
Population
What statement is false about Miss Buhl:
She is a triplet
She has been to 15 different states
She has pet deer
She has been to 15 different states
The process in which a species has changed over time is known as this.
What is Evolution
The concept of humans selecting desired traits in species
Artificial selection
Preserved remains of ancient organisms
What are Fossils
What are the 5 factors that are disrupting equilibrium
Nonrandom mating – Increases frequency of certain alleles.
Small population size – Increases genetic drift effects.
Gene flow – Movement of alleles due to migration.
Mutations – Introduce new variations.
Natural selection – Favors some alleles, driving change.
The study of where species live
What is Biogeography
Structures that have no apparent function and appear to be residual parts from a past ancestor
Vestigial structures
collectively, all of the alleles of the population’s genes
Gene pool
Any inherited trait that increases an organism's chance of survival is known as this.
Adaption
Body parts that share a common function but are structurally different
Analogous structures
Several individuals from a population break off and form new population
What is Founder Effect
When a freak accident wipes out part of the population
What is bottleneck effect
Which term refers to the process by which individuals that are better suited to the environment survive and reproduce therefore passing down their genes to their offspring?
Natural selection
A mistake or change that occurs in the DNA sequence is called a
Mutation
Individuals of one extreme of a phenotype have the advantage over others
What is Directional Selection
The differences in the physical traits of organisms
What is variation
This is another term for Natural selection
What is The survival of the fittest
when gene frequencies are changed by random events in a isolated population
Genetic Drift
Type of selection in which the two extreme versions of a trait are favored
Disruptive Selection
Genetic makeup of an organism (AA, Aa, aa).
Observable traits influenced by genotype.
Genotype
Phenotype
Why did the population of pepper moths change?
industrial revolution, smoke, trees turning black, the mutated black moths were able to survive and reproduce better and their population grew.