Answer:
A microorganism, especially one which cause disease.
Explanation:
It causes you health problems like fever, diseases, and etc.
Most likely, the correct answer is:
D. Hummingbirds with shorter or longer beaks can feed from one of the available orchids, but hummingbirds with intermediate beak lengths cannot feed from either.
The length of a hummingbird's beak vary depending on its food, but it is usually longer than hummingbirds' bodies. The length is useful for reaching deep into blossoms to lap up nectar.
