An astronomer uses a powerful telescope to spot an object in a far away galaxy. The object appears to have a clear orbit around a star and it has a spherical shape; what is it? (10 Points)

a comet

an asteroid

a planet

a moon

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?

Dna, in the nucleus carries the genetic code for making proteins in ribosomes. in the diagram, b, represents the proteins produced. dna cannot leave the nucleus to carry the genetic information to the ribosome where proteins are produced. how does the genetic code get from the nucleus to the ribosome? what does a represent? now

As an asteroid comes close to earth, it's name will change to? apex