Answer:
Because ticks stay attached to hosts, blood feeding for several days, they secrete novel pain killers, called kininases, in their saliva which help them go unnoticed. If you have been bitten previously, you may notice a small red bite mark, which can be itchy.
Explanation:
The protective vest keeps some Radioactive particles from hitting out body, as the X-ray uses radiation to project our bones onto a screen, etc. It helps, but also hurts. (Not physically hurting.)
Axons with large diameters conduct impulse faster than those with small diameters. Also Myelinated axons conduct impulse faster than unmyelinated axons. Axons with the largest diameter are all myelinated, therefore they are capable of salatory conduction (Impulses jump from one myelinated node to another). The smallest diameter axons are unmyelinated, so their conduction is continuous.
I hope this helps. :) :)
<u>Answer:</u>
<em>The patella articulates with the tibia to form the knee joint.
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<u>Explanation:</u>
<em>Patella is called the knee cap and it gives protection to the knee.</em> Femur is the longest bone in the body and has the function of supporting the weight of the body and enhancing the movement of the legs. <em>The knee joint permits the extension of the lower leg relative to the thigh.
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It allows a 120 degree movement unlike other joints that allow lesser freedom of movement. <em>Patella is the part of the femur that articulates with the tibia and forms the knee joint.
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