<span>C. Several billion,,,,,,,,,,,,,,,,,,,,,</span>
This short description given clearly describes the Milky Way Galaxy. It is a collection of millions of stars, dusts, and gases that form a halo of hot gas. Some scientists theorized that within this galaxy are thousands of other galaxies that could possibly hold other life forms.
DNA provides information at the species level.
Hope it helps;Pls mark as brainliest answer
Blastula --> early embryo with spherical shape if cells before gastrulation into germ layers
Answer:
Knowledge gain through observation and experimentation.
Explanation:
Science is the systematic study of the structure and behaviour of the physical and natural world through observation and experiment. That knowledge which can be gain through observation and experimentations is considered as scientific knowledge and those knowledge which can be attain through other sources not observation and experiments is known as non-scientific knowledge so we can say that observation and experiments provide scientific knowledge.
