(Variation.)Heritable differences that exist in every population are the basis for natural selection.
(Overproduction). Competition between offsprings for resources.
(Adaptation.) a trait that helps an organism survive and reproduce.
Descent with Modification.
<u>Answer</u>: Sustainable development
<u>Explanation</u> :
The concept of sustainable development is based on the ideas of sustainable forest management and is derived from the Brundtland Report (1987).
It is basically an organizing principle which states that the human developmental goals should be met by maintaining the stability of the natural systems so that the natural sources can be sustained for future use as well.
So,<em> sustainable development basically means that the present needs should be met without comprising the needs of future generations.</em>
If you mean a specific system then the reproductive system...but i haven't the slightest idea as to anything else to do with your question...
Your question is rather unclear but from what I can tell either there were not an even amount of Petri dishes or some of them were left open while others were not.
a nitrogenous base, a sugar, and a phosphate. A nucleotide is the basic subunit of both DNA bad RNA. It contains a base with nitrogen, a 5-carbon sugar and a phosphate group.
