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Because adaptations are an observed effect of evolution. They could not happen if evolution did not occur.
The two major properties of all populations is the rise and fall of the population or rather the number of births and deaths that occur within a population.
They occur in rivers, lakes and swamps.
L
oldness and food.
True
The adaptations to the animals in the sea like the salmon are common to the temperature changes that may occur and the types of salmon are in each particular area.
There are seasonal changes which occur
Damp
genetic drift may occur when a small group of individuals colonizes a new habitat
produce more eggs
Chronic adaptations changes that occur as a result of repeated regular exercise and activity