Population dynamics- focuses on changes to size and makeup within a given ecosystem.

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Population dynamics mainly focus on changes to population size within particular ecosystem

Explanation:

Population dynamics mainly focus on changes to population size within particular ecosystem

Population dynamics in simple term study the size & age of population. it state that population is dynamic in nature and it is depend on death, birth and any migration with in the examine ecosystem. It is basically refer the whole process how population changes over given period of time in a given ecosystem

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.