The answer is D. Because the bird has to be noticed and the brighter the feathers the more likely the chance to be noticed.
Answer:
the human body is made of 11 important organ systems, including the circulatory, respiratory, digestive, excretory, nervous and endocrine systems. They also include the immune, integumentary, skeletal, muscle and reproductive systems
Explanation:
A cell wall, cytoplasm and ribosomes