Mutations that lead to protein disruption will produce defective proteins by affecting the first level (amino acid sequence). Defective proteins are non-functional.
<h3>What is mutation?</h3>
A mutation is any alteration in the nucleotide sequence of the genome (i.e., the genetic material) of an organism.
Mutations in genes may lead to the generation of different types of proteins that encode for different amino acids.
The first level of protein structure is the amino acid sequence, thereby mutations may affect this level.
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Decomposition is the process by which organic substances are broken down into a more simple organic matter. The process is a part of the nutrient cycle and is essential for recycling the finite matter that occupies physical space in the biosphere. Bodies of living organisms begin to decompose shortly after death. Animals, such as worms, also help decompose the organic materials. Organisms that do this are known as decomposers.
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Answer:
Pioneer species are hardy species which are the first to colonize previously biodiverse steady-state ecosystems. Some lichens grow on rocks without soil, so may be among the first form of life. The example includes bacteria, fungi, and lichens.