Which of the following describes a “green roof”? a roof that does not affect the carbon level of the atmosphere
a roof that is covered with sustainable living plants
a roof that is painted with a green copper compound to prevent the growth of moss
a roof that is shingled with green tiles

What is the process of a new plant growing from its seed into a seedling? primary growth fertilization pollination germination

Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled

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