What is the most important role that proteins play in living organisms on earth?

Actually, this is kind of confusing question, cause if we talk about importance of proteins, most of their function in our body is important. We can easily determine, "oh this is the important one". Cause, if we remove one function, others will be in trouble too. That's why we called our body as a system, cause it have an integration.

The big role that play by proteins are
1. Build most of enzyme
2. Arrange the structure of cell
3. Transport matter in cell

The answer is option a.

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.