The portion of the pericardium that covers the heart wall is called the

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

If t=tall and t=short what will be the physical appearance of the offspring the cross below? a.some will be tall and some will be short b.they will all be tall c.they will all be short d.they will be medium height

Write a paragraph explaining how energy flows through an ecosystem using the following terms: energy pyramid, trophic level, producer, primary consumer, decomposer, sun, secondary consumer, and tertiary consumer. .