b. Natural selection is an example of the major mechanism by which evolution occurs
Explanation:
The concept of evolution are both closely related in that natural selection is the major mechanism by which evolution occurs. This was proposed by Charles Darwin after his journey to the Galapagos Island on the HMS Beagle.
- Evolution is the change in the characteristics of an organism over several generations.
- Organisms evolved to in order to be at an advantage and naturally favored.
- According to Charles Darwin, organisms evolved by the process of natural selection.
- Natural selection is the process by which an organism becomes adapted to its environment.
- Organisms with desirable trait are naturally favored with competitive and reproductive advantage in the environment.
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<span>I would say A hope this helped you out buddy</span>
Answer:
D
Explanation:
Environmental unity means that everything is connected to each other and affects each other. Here, the wooded area affects the river, which affects the flooding.
<u>Answer</u>:- A material is considered biodegradable if it can be broken down by biological processes.
<u>Explanation</u>:-
1. There are many living organisms such as bacteria, fungi and other microbes that feed on organic matter and convert them into simpler forms.
2. Due to the enzymes released by such microbes, all the materials such as food refuse, tree leaves, grasses etc. are considered to be <em>biodegradable </em>as they are capable of being broken down by them.
3. The materials that cannot be broken down by such living organisms are considered to be <em>non biodegradable</em>.
4. The non biodegradable substance produce a problem in the environment as they persist for a long period of time and also form a major source of pollution for soil and water. Further, they may also cause harm to other living organisms present in the environment.
5. Example of a non biodegradable substance is plastic.
