Astudent hypothesized that lettuce seeds will not sprout unless they were exposed to darkness. the student planted 10 lettuce seeds under a layer of soil and scattered 10 lettuce seeds on top of the soil. the data collected are shown in the table below. one way to prove the value of the validity of these results could be

What molecule contains an organisms genetic material, passed down from parents to their offspring

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

Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.