Are you asking what part of the eye is it called?
a. RNA molecules is the correct answer.
Hope this helps~
Answer:
Like all organisms, plants detect and respond to stimuli in their environment. Their main response is to change how they grow. Plant responses are controlled by hormones. ... Plants also respond to daily and seasonal cycles and to disease.
Smooth muscle is present throughout the entire tracheobronchial tree. Bronchial smooth muscle tone is regulated by the vagus nerve, which, when stimulated, causes constriction (bronchospasm), and by the sympathetic nervous system, which produces dilation (bronchodilation).
The color of a star is primarily determined by its surface temperature.
For example, the really hot stars, called White Dwarf stars, have a white surface temperature, while a cooler star would have a more red color.
