Survival of the fittest. If one organism thrives better in an enviornment and the other organism struggles, the one that is more adapted will obviously play a part in helping the less adapted organism die out. Food is a major point along with other aspects
The answer would be letter a
The skeletal muscles have striations to do their sacromere anatomy
sacromere which are formed by actin and myosin stacking
sarcomere is the functional unit of muscles and shows striated appearance due to thick and thin filaments
hope it helps
