When otter populations decline, how might the type of limiting factor affecting sea urchins change over time? Are sea urchin populations more likely to be affected by density-dependent or density-independent factors? Explain.

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

Pulmonary arteries carry highly oxygenated blood. true or false?

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