The natural resources like- energy of light, compounds, trees, nutrients helps in generating the different species of organisms.
Explanation:
The Earth is the home of innumerable species of organisms. In the web of life every species of every kind depends on each other and on the natural resources for their survival. The small species like worms depend on tree leaves, mammals, reptiles, amphibians and many more depends on each other and on the natural energy produced by the natural resources.
Through the process of chemical reactions and exchanging of energy with each other the population of organisms has developed. The solar energy is responsible for the plant life survival and plant life determines the survival of mankind and other animals.
You would have to be very careful of cross-contamination. That means you would have to work very carefully and precisely with protective clothing, ensuring that none of your DNA (from skin or hair or even trace) gets into the sample you are working with
You would have to be very careful to check and record samples properly to ensure nothing got mixed up or mislabeled and this could be disastrous for criminal cases
All the material is very precious and sometimes only one sample exists, so you have to avoid making any mistakes. Experiments can't always be repeated.
