What do the pancreas, liver, salivary glands, and gall bladder have in common? a. they are all involved in mechanical digestion. b. they are all accessory structures. c. they all digest carbohydrates. d. they all release digesting enzymes.

i guess they are all accessory structures

The correct answer would be b. They are all accessory structures.

Salivary glands, pancreas, liver and gall bladder form the accessory glands of the digestive system.

Salivary glands produce salivary amylase in the oral cavity which helps in the digestion of polysaccharides.

Endocrine portion of the pancreas release pancreatic juice which contains a mixture of digestive enzymes such as lipases, proteases, amylase et cetera.

The liver helps in the production of bile which helps in the emulsification of the fats.

The gall bladder is mainly associated with storage and concentration of bile produced by the liver.

it's anything that aren't producers and consumers.

explanation:

you've got to be clear on what "this" is

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.