The best description of rapidly expanding population is rate a high birth rate and many individuals in the younger age groups.
Population growth or population growth Listening or total population change refers to the difference between the size of a population at the end and at the beginning of a given period (usually one year).
It can be expressed as the rate of change in the number of individuals within a population per unit of time and for any species (animal or plant, for example).
It is divided into two distinct parts:
* natural increase; the difference between the number of live births and the number of deaths in a territory during a period. It can be either positive or negative.
* net migration.
A population explosion is a very high population growth and therefore very fast population
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The nervous system beause nerves r everywhere in your body
<span>Some mutations don't have any noticeable effect on the phenotype of an organism. This can happen in many situations: perhaps the mutation occurs in a stretch of DNA with no function, or perhaps the mutation occurs in a protein-coding region, but ends up not affecting the amino acid sequence of the protein</span>
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