FALSE
All organisms use this "mechanism" to defend their food and shelter. Birds protect their nest just like all other animals and they fight for food.
I hope this answers your question.
Please remember to rate my answer and comment if you have any questions.
The answer is : randomization was not used in sample selection. The major difference between experimental and quasi-experimental designs is lack of randomization in sampling selection.
A plant begin to produce its own food in the following cases:
-when the first leaves are formed
-as soon as photosynthesis starts
Even the little new seeds grown-up from the food reserves, but start making their owm food as they see sunlight
The best answer would be "research reasons why species change over long periods of time"
if not i apologize but this is my best guess<span />
