Dna replication involves several steps. first, the enzyme, helicase, unwinds the hydrogen bonds of the dna double helix. then dna polymerase attaches the complementary nucleotides thereby creating two semi-conservative strand of identical dna. semi-conservative replication of dna refers to the idea that dna molecules need to unwind before duplication can begin. each new dna molecule contains two new single rna strands. the identical two strands of dna molecules run in opposite directions. two identical dna strands contain part old and now part new nucleotides.

Which type of organism is missing from the food web seen in the illustration? primary consumers decomposers primary producers secondary consumers

Clues to ecological principles are given in numerous passages of the bible. a bible study of ecology actually opens the doors to better understanding of god's love and concern for the earth. use a concordance to locate bible passages associated with words concerning our stewardship of the earth. you may use a dictionary to find synonyms for these words: dominion replenish subdue judgment stewardship find each of the passages using these words related to principles of ecology. list all passages by quote, book, chapter, and verse under each word. use your own interpretation to rewrite what you think each verse is saying. after your discussion of each of these words, ask one other person to explain his understanding of the word and a related verse without any hints. summarize what he tells you. a concluding paragraph for each of the words should be written noting similarities and differences between your interpretation and that of each person consulted.

Explain why ecosystem diversity results in species diversity in a healthy biosphere