What system passes information from external stimuli to the nervous system?

The answer is sensory neurons. They have receptors on the epithelial tissue. Also referred to as afferent neurons, they convert stimuli from the environment into an impulse that is transmitted to the Central Nervous System for interpretation and for a response signal through the efferent /motor neurons.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.