The central nervous system.
Answer:
The correct answer will be- false
Explanation:
The understanding of the biomechanics of the human movements is studied by the lever system which represents the rigid bar which comes on a fixed point as a result of the force exerted.
The lever systems are defined into three types into which the last lever system is the third lever system which is the recognized by the muscle (effort) in the middle of the joint (fulcrum) and the weight of the body (load).
These movements are related to the exercise like jumping, running and kicking which requires speed and distance to be covered. Thus, false is the correct answer.
the effort is the middle component and lies between the fulcrum and load.
This simple concept describes the process by which cells exchange toxic gases for life-sustaining gases. It also describes how nerve cells are able to send electrical signals to each other cells. Diffusion tells embryonic cells where to crawl and when they have arrived. Diffusion also makes it possible to reduce the loss of body heat to the surrounding environment.
Answer:
It requires energy
Explanation:
In the coupled transport system, coupled carriers couple the inward transport of one solute across the membrane to the outward transport of other solutes across the membrane. The tight bonding that occurs between the transport of two solutes allows these carriers to utilize the energy stored in one solute, usually an ion, to facilitate transport of the other. With this way, the free energy released during the movement of an ion down an electrochemical gradient is utilized as the driving force to transport other solutes inwards, against their electrochemical gradient.
Explanation:
in dim light the iris contract ,the the pupils widens to allow more light to enter the eye,in bright light the iris relaxes and size of pupil becomes smaller to reduce amount of light entering the eye. NOTE: the muscle do not expand they either contract and relaxes
