YALL HELP Write a set of instructions that describe how to find the density of an object. Write the instructions so that they work for a regularly shaped object and for an irregularly shaped object. List the materials needed and the sequence of steps to follow.

density=mass/volume

Explanation:

Materials:

weighing scalegraduated cylinder/beaker (depends on the size of object)waterobject of interest

Instructions:

Weigh the object of interest.Put water inside graduated cylinder/beaker making sure to note how much water was added.Put object inside the graduated/beaker noting where the water is at.Subtract the measurement before object was added from after (After-before=volume)Mass/volume=density

answer: - b cells

explanation: -

there are many types of white blood cells present in our body. one such class of white blood cells are the lymphocytes. the b cells belong to the lymphocyte class of wbcs. the b cells perform their action against the pathogen by producing specialised proteins called as antibodies. these antibodies are produced as and when the b cells encounter pathogens in response to the antigens present on the surface of the pathogen. these antibodies bind to the antigens present on the pathogen and then, target them for destruction by other cells of the immune system.

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

Cbecause it is the only one describing a habitat