What characteristics is found in the whale but not in the phytoplankton a. heterotrophic b. cell walls c. unicellularity d. prokaryote cells

The answer would be A. Only plants have cell walls and mammals aren't prokaryotic. Whales also have millions of cells in them, so C would be incorrect.

The answer would be Heterotrophic.

Hope this helps!

i'd say that the moon rock is about 2.2 billion years old.

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.