1. What two substances are missing from the model that would be needed to form proteins and nucleic acids? 2. Explain how the two elements identified above are transferred into living things and made into proteins and nucleic acids needed by living things.

What do animals wth echolocation have in common other than echolocation

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity

Plz quick a natural resource that is replaceable through a cycle in nature or sustainable practice is called a? the subject is science