What is a simple life cycle of a bird?

The simple life cycle of a bird is: Egg, Chick, then Adult

Hope this helped ^-^

A simple life cycle of a bird is this: (even though there are over 9,000 species of birds in the world that we know of, they all develop the same way)

They come from a single-celled egg, are incubated, then they hatch and grow to adulthood.

Then, that adult bird attracts a mate, builds a nest, and raises young to start the cycle all over again.

the answer is c

explanation:

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.