The correct answer is fixed migration pattern.
Extinction means termination of last member of a particular species. This can be due to various factors. The reason could be natural or human interventions. The best characteristics of an organism to be less likely to face extinction are the fixed migration pattern. Migration of that particular species in a fixed pattern will make them adapt different environment. This saves the species from natural extinction. Even if the species of a particular geographical area dies the migrated species will be alive to breed and save the species from extinction.
It doubles, so the answer is 8 chromosomes.
Answer:
<em>large</em><em> </em><em>range</em><em> </em><em>of</em><em> </em><em>phenotypes</em>
Explanation:
<em>shades</em><em> </em><em>of</em><em> </em><em>brown</em><em>,</em><em> </em><em>hazel</em><em> </em><em>greens</em><em> </em><em>and</em><em> </em><em>blue</em><em> </em><em>-</em><em> </em><em>they</em><em> </em><em> </em><em>are</em><em> </em><em>all</em><em> </em><em>part</em><em> </em><em>it</em><em> </em><em>could</em><em> </em><em>be</em><em> </em><em>multi-coloured</em><em> </em><em>.</em><em> </em><em>One</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>eyes</em><em> </em><em>could</em><em> </em><em>have</em><em> </em><em>hazel</em><em> </em><em>and</em><em> </em><em>the</em><em> </em><em>other</em><em> </em><em>could</em><em> </em><em>have</em><em> </em><em>shades</em><em> </em><em>of</em><em> </em><em>brown</em>
The neuroendocrine system produces and releases hormones which are basically chemicals that travel via the bloodstream to specific organs in the body to control things like heart rate, glucose release rate, etc. This is how homeostasis in maintained.