А _is a chemical substance secreted by endocrine glands into the bloodstream that controls or regulates specific physiological processes.

Step number 4 is least likely to occur meiosis 1

The main role of dna in the  cell is the long-term storage of information. it is often compared to a blueprint, since it contains the instructions to construct other components of the  cell, such as  proteins  and rna molecules.the main function of rna is to carry information of amino acid sequence from the genes to where  proteins  are assembled on  ribosomes  in the  cytoplasm. mark brainliest, my work is good.

C.25-28.. . .

Centriole.centrioles are present in animal cells but are usually absent in plant cells.