What are 2 reasons that both cnidarians and poriferans are considered simple animals?

They are heterotrophic

They can move from one place to another

Explanation:

Poriferas include mainly sponges while Cnidarians consists of jelly fish, sea anemone etc.

Poriferas and Cnidarians swallow organic matter in the water as source of food.

Both of them also move although poriferas are only motile in its larva phase and non motile in adult phase while Cnidarians are motile in all phases of life.

the wires in the toaster turning red and the toast crisping and turning brown

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.