To
heat (thermal)
light
sound
chemical to…
electrical
heat (thermal)
light
sound
electrical to…
electrical
heat (thermal)
light
sound
exapmle -
mechanical to… - electrical - hydroelectric dams convert mechanical to electrical energy by using the flow of water to turn a turbine that powers a generator.

Nathaly !  You never let me off easy, do you.
This is 11 separate questions.  For 5 points ! ! !

I have work to do.  So instead of lecturing you on how you need
to be doing your own work, I'll just run through some answers.
That's a lot easier and faster.

Mechanical -- heat . . . rub your hands together to warm them up
Mechanical -- light . . .  I can't think of one
Mechanical -- sound . . . playing drums by hitting them with sticks

Chemical -- electrical . . . a battery
Chemical -- heat . . . a gas burner on the stove
Chemical -- light . . . a candle or a match
Chemical -- sound . . . a dynamite explosion

Electrical -- Electrical . . . the battery inside your cellphone
Electrical -- heat . . . a clothes drier or blow drier
Electrical -- light . . . a light bulb
Electrical -- sound . . . mp3 player; radio; thunder

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.