The answer is A: photosynthesis :)
Coach can first recognize heat stroke by increased in body temperature brought on by intense physical activity in hot weather. Exertional heat stroke is a medical emergency; the emergency medical service should be called for and while waiting for them, affected person should be moved into a cool place and all outer clothing materials should be removed from his body.
The correct answer is mechanoreceptors.
The mechanoreceptors refer to the receptors, which instructs the CNS about the sensations of vibration, touch, and skin tension. They are sensitive to the mechanical distortions of the skin stimulated by coming in exposure with the objects.
They are situated at the origin of the exteroreceptive sensitivity epicritic touch and permits the analysis and exploration of the external surrounding. They possess high sensitivity and are associated with the fast-conductive large sized myelinated fibers.
The frequency is 3 since you take the reciprocal of the period
A gene is a stretch of DNA or RNA that determines a certain trait. Genes mutate and can take two or more alternative forms; an allele is one of these forms of a gene. An allele refers to a specific variation of a gene.