Damian ate a protein bar containing 19g of protein and 300 total calories. what percent of the calories in the bar is from protein?

Explain the importance of producers, primary consumers, secondary consumers. and decomposers in an ecosystem

Microorganisms aren’t all decomposers; in fact, many act as producers or primary consumers in an ecosystem. how do microorganisms that act as producers benefit the rest of an ecosystem in terms of energy transfer? what about microorganisms that act as primary consumers?

Need , i need a scenario of: artificial selectionmutationnon random mating