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Unit 4 Topic 2 Continuity of Life on Earth

Horizontales
What type of speciation occurs when populations are separated by a geographical barrier?
What's the process called when gene frequencies change due to random events?
What's the term for large-scale changes leading to the formation of new species or groups of species?
What's the term for the process by which organisms better adapted to their environment tend to survive and reproduce more?
Reproduction
What are the three main types of phenotypic selection? Stabilising, disruptive and ______
What's the term for the transfer of genetic material from one population to another?
Describe the mechanism of speciation where two populations live in adjacent environments but have limited interbreeding.
What's the term for the selection that increases the frequency of advantageous alleles?
Verticales
What term describes the proportion of a specific allele within a population's gene pool?
Name the type of evolution that results from gradual accumulation of small changes over long periods.
What's the term for the process of species evolving in response to each other?
How does divergent evolution lead to the formation of new species from a common ancestor? Adaptive __________
Which type of selection occurs when extreme phenotypes are favoured over the intermediate ones?
Define the term that refers to small-scale changes within a population's gene pool.
Survivability
What's the term for the process of speciation in the presence of geographic overlap?
There are three types of natural selection: disruptive, stabilising and ______
What's the term for the accumulation of microevolutionary changes that lead to the formation of new species?
What's the term for a significant reduction in the size of a population due to a catastrophic event?
Name the type of evolution where two unrelated species develop similar traits due to similar environmental pressures.
What's the term for the selection that decreases the frequency of advantageous alleles?
What's the term for the extinction of a large number of species within a short period?