49 points:

listed in the item bank are individual steps that need to be ordered. to find out more information about steps, some have more details available when you click on them. drag and drop the steps in the proper order by placing each in its corresponding open rectangle. be sure that the earliest step is placed next to the number 1.

place in order from simplest (top) to most complex (bottom).

- cell
- organ
- organ system
- organism
- tissue

answer:

mrna moves to the ribosome

dna unzips in the nucleus

protein assembled at ribosome

transcription occurs

translation occurs

explanation:

rna polymerase binds to the dna sequence

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.