[[ LAST QUESTION FOR MY EXAM !!! ]]

2 answers:

6 0

A.) sexual phenotypic traits

4 0

Answer:

b) extreme

Explanation:

Disruptive Selection:

Disruptive or diversifying selection is a form of natural selection that favors phenotypes on the extreme ends of the trait/characteristic spectrum over intermediate phenotypes.
This occurs in environments where two extreme traits are the fittest to survive and successfully produce offspring.
London's peppered moths are one of the most prominent examples of disruptive selection. The rural environment favored moths with lighter colour but the darker coloured moths were easily spotted by predators.
On the other hand, industrial areas favored darker coloured moths as they could easily camouflage in the polluted surroundings. Here, the lighter moths were the ones to be easily spotted by predators.
However, moths of intermediate shades were easily spotted in both environments as they couldn't camouflage easily.

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slega [8]

Answer:

The correct answer is explained below:

Explanation:

Flooding and intrusion of salt water in the low lying areas can adversely affect human life. This can happen in the following ways:

Flooding can cause many people to die due to drowning in the flood water.
Many people lose their habitat and all their belongings due to the entry of water into the settlements having only the ground floors. These people need to rehabilitated to safer regions.
The saline water percolates through the ground and mixes with the fresh water present in the water table, thereby making them saline and non-consumable.
People have to face the dearth of food, drinking water, clothes and electricity until rescue operations are sent.
Increased chance of transmission of water-communicable or water-borne diseases like diarrhoea.