Question

pls give a short note on conclusion of migration​

Answer 1

Conclusion

• Migration is defined as the regular movement of animals each year between separate breeding and wintering grounds.
• There are many different types of migratory behaviour, ranging from completely sedentary populations to populations that are completely migratory (obligate migrants).
• There are three kinds of natural selection that can cause evolutionary change: directional selection, disruptive selection and stabilizing selection.
• The study of Darwin's finches illustrates how rapidly natural selection can result in a change in phenotype.
• Homeostasis is an important mechanism for maintaining internal balance. In achieving homeostasis, animals maintain a relatively constant internal environment even when the external environment changes significantly.
• Birds use both internal maps and compasses to find their way during migration.
• Olfactory maps and magnetic maps are believed to help birds locate themselves in space.
• Three internal compasses allow birds to sense the direction in which they are flying. These are the Sun compass, the star compass and the magnetic compass.
• The mechanisms used by birds to orientate during migration are still largely unknown and are currently the subject of ongoing research.

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Answer 2

Explanation:

Thus migration as a component of population change has significance well beyond its impact on the changing population size and composition of a human settlement. Migration is generally known as the movement of people from one residence to another permanently or temporarily for a substantial period of time.