Speciation and Extinction

Match

Match the following terms to their definitions:

• Describes the differences in DNA among individuals within a species

• The formation of new and distinct species through the course of evolution.

• The selective breeding of plants and animals to promote the occurrence of desirable traits in offspring

• A change in the allele frequency of a population as a result of chance events rather than natural selection.

• Random errors in gene replication that lead to a change in the sequence of nucleotides. These are the source of all genetic diversity and new alleles.

Genetic Variation

Speciation

Artificial Selection

Genetic Drift

Mutations

• Genetic Variation

• Speciation

• Artificial Selection

• Genetic Drift

• Mutations

Match

Match the speciation types with their process.

• Allopatric

• Peripatric

• Parapatric

• Sympatric

• Artificial

Due to geographic isolation

Geographic isolation of a very small population, usually on islands

Partial geographic separation of different environments

No barrier. Caused by mating habits

Farming, breeding, or lab selection of traits by humans

• Due to geographic isolation

• Geographic isolation of a very small population, usually on islands

• Partial geographic separation of different environments

• No barrier. Caused by mating habits

• Farming, breeding, or lab selection of traits by humans

Match

Match the following

• adaptation

• mutation

• natural selection

• artificial selection

• biological evolution

a trait that promotes success in the natural environment

random change in the DNA sequence giving rise to genetic variation

a driving force of changes in a population over time

humans produce desired outcomes by selective breeding

changes in a species or population over generations

• a trait that promotes success in the natural environment

• random change in the DNA sequence giving rise to genetic variation

• a driving force of changes in a population over time

• humans produce desired outcomes by selective breeding

• changes in a species or population over generations

Match

Match the following types of isolation

• Temporal Isolation

• Behavioral Isolation

• Habitat Isolation

• Gametic Barrier Isolation

• Mechanical Isolation

populations are isolated because they breed at different times

populations do not interbreed because their courtship displays differ

populations are isolated because they breed in different habitats

matings fail because eggs and sperm are incompatible

mating fail because male and female reproductive structures are incompatible

• populations are isolated because they breed at different times

• populations do not interbreed because their courtship displays differ

• populations are isolated because they breed in different habitats

• matings fail because eggs and sperm are incompatible

• mating fail because male and female reproductive structures are incompatible

Drag and Drop

Formation of new species.

Placeholder

Drag these tiles and drop them in the correct blank above

Speciation

Trait

Fossil record

Ancestor