Answer:
Cnidarians represent a more complex level of organization than Porifera. They possess outer and inner tissue layers that sandwich a noncellular mesoglea. Cnidarians possess a well-formed digestive system and carry out extracellular digestion.
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Answer:
B
Explanation:
The lyric phase is a six stage phase which include attachment, Penetration, transcription, biosynthesis , maturation and lysis
The answer is RNA polymerase binds to a promoter region of DNA.
Answer:
The shape of the enzyme determines which chemical reaction it will speed up.May strain the bonds of the substrate or put chemical groups of the active site in the correct position to speed up the reaction.