Answer:
Option (D).
Explanation:
Skeletal muscles is one of the most important types of muscle that regulate the contraction of skeletal muscles of the body. The skeletal muscle is controlled by the somatic nervous system.
Skeletal muscles are multi nucleate contains large number of nucleus in their structure. The multiple nucleus increases the ability of muscle to produce large number of enzymes. These enzymes are proteins are important for the muscle contraction.
Thus, the correct answer is option (D).
The defense system of the human body is made up of entire organs and vessel systems like the lymph vessels, but also of individual cells and proteins. The inner and outer surfaces of the body are the first barriers against pathogens (germs). These surfaces include the skin and all mucous membranes, which form a kind of mechanical protective wall.
Several things support this protective wall:
<span><span>- The body’s own antibacterial substances can disable different pathogens from the environment at an early stage. A certain enzyme found in saliva, the airways and tear fluid destroys the cell walls of bacteria.
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- Many pathogens that are breathed in get stuck to mucus in the bronchi and are then moved out of the airways by hair-like structures called cilia.
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- Most pathogens that enter the body together with food are usually stopped by stomach acid.
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- Normal flora, harmless bacteria that reside on the skin and many mucous membranes in the body, also help to protect the body.</span></span>
The cough and sneeze reflex can also help to remove pathogens.
Hope this helps (:
The requirement of energy makes an organism's cell make-up different from the cell make-up of an inanimate object
Water falls from a reservoir through a channel to a turbine. The water turns the turbines, which allows the generator to make electricity
Explanation:
Hydroelectric power is generated from free falling water through a river channel.
The flow of water at a high speed creates water current and the kinetic energy of the water movement spins turbine attached with a generator. This produces a rotating energy which spins the generator and the coil inside.
The magnetic spinning of coiled wire inside the generator produces electric current which is then stored and transmitted through electric power grid lines to supply electric current.
Answer:
Deposition is the geological process in which sediments, soil and rocks are added to a landform or land mass.
Explanation:
Wind, ice, water, and gravity transport previously weathered surface material, which, at the loss of enough kinetic energy in the fluid, is deposited, building up layers of sediment.
