Asked by Joseph Bartmann on May 13, 2024
Verified
What might be a cause of geographic isolation?
A) competition for food
B) genetic mutations
C) behavioural differences
D) changes in sea level
Geographic Isolation
The physical separation of populations of a species, leading to genetic divergence and potentially speciation, due to geographical barriers.
Changes In Sea Level
Variations in the global average sea level, typically caused by either thermal expansion of sea water as it warms or by the melting of ice over land.
Genetic Mutations
Changes in the DNA sequence of an organism's genome, which can lead to variation among species and individuals, with potential effects ranging from harmful to beneficial.
- Acknowledge the influences on speciation, extinction, and the establishment of ecological niches.
Verified Answer
DB
Dustin BickhamMay 14, 2024
Final Answer :
D
Explanation :
Changes in sea level, such as the formation of a new island or the flooding of a land bridge, can physically separate populations and lead to geographic isolation.
Learning Objectives
- Acknowledge the influences on speciation, extinction, and the establishment of ecological niches.