all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding
What is a population?
Natural selection works ______________ weaker members of a population.
What is against?
Speciation brought on by geographic isolation
What is allopatric speciation
Yellow beetle and green beetles live in the rainforest canopy. What what will happen to this population?
The green population will increase and the yellow will decrease
It was discovered that whales evolved from
what is terrestrial mammals?
The process by which new species originate and can no longer interbreed with others in the group
What is speciation?
Having a higher fitness to reproduce?
What is reproductive advantage?
Speciation that occurs in the same geographic location
Sympatric speciation
What is most likely to happen to moth populations in the picture shown?
Dark moths--hunted easily, dark moths--population decreases.
Evidence of evolution from looking at bones
what is fossil evidence?
What is a change in a gene that results in a new trait?
What is a mutation?
The passing down of genes from parent to offspring
What is heredity?
What is inheritable traits?
Volcanos, earthquakes, rivers, mountain ranges are all forms of
What is a geographic barrier?
Selection type in which both extremes are favored
What is disruptive selection?
Evidence of evolution by looking at fetal development
What is embryological evidence?
A TRAIT that helps an organism to survive and reproduce in its environment
What is Adaptation?
What would happen if the environment changes drastically and no organisms have fitting adaptations?
The species could go extinct
A huge gust of wind takes a few birds from one island to another, when they return years later, they are no longer able to breed with their original population
Allopatric speciation
Selection type in which one of the traits is favored over the other?
What is directional selection?
A diagram that showcases evolutionary relationships based on common ancestry
what is a cladogram?
what is a phylogenetic tree?
A structure that is present but no longer needed by the organism. Showcases evolution of a species.
What is vestigial structure?
Having a lot of offspring to ensure some can survive to continue the survival of the species
What is overproduction of offspring?
Fish within the same lake have a genetic mutation and are no longer able to breed with other fish in the lake.
What is sympatric speciation?
Selection in which the intermediate (average) is favorable?
What is stabilizing selection?
which species share the least amount of genetic information?
What is a tortoises and Fox?