Island isolation promotes allopatric speciation. Species are separated by the physical barrier which is in the ocean and islands are being isolated by each other by bodies of water.
There is no gene flow which occurs between the separated species. Living in the distinct island. The species get adopted by the island to the environment.
They then diverge as they separate species.
Insects are hard to control because they reproduce in large numbers; they are small, can fly, and hide in small places, making them difficult to see and find. They are able to develop resistance, over time, to pesticides and pass that on to their offspring.
The
diagram shows the current percentage of each population by age and
gender (male/female) for two countries. After carefully analyzing the
graph I came with the conclusion that:
(1)
Country A, the population growth over the next 20 years will place
the greatest strain on the environment since the larger percentage of
young people could result in rapid population growth.
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hope this helps, Regards.
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Answer:
thin
Explanation:
so there is faster diffusion rate and also there will be short diffusion distance which therfore will lead to effective exchange:)
fat and oil. A fat molecule consists of two kinds of parts: a glycerol backbone and three fatty acid tails.