Answer:constriction of pupil
Explanation:the circularly arranged smooth muscle fibers in the highlighted structure ie the iris causes constriction of the pupil.
The iris basically has ciliary muscles that control Lens shape ,this happens when the ciliary muscles under the signal of the parasympathetic nervous system contract leading to the constriction of the pupil and when these muscles relax then dilation of the pupil will occur
Answer:
1. Motor, 2. spinal cord to muscle
Explanation:
motor neurons are the second part of a reflex arc that actually causes the movement associated with the reflex arc.
D. Decomposers return everything back to the environment
Answer:
The function of a protein is directly dependent on its threedimensional structure (Figure 3.1). Remarkably, proteins spontaneously fold up into three-dimensional structures that are determined by the sequence of amino acids in the protein polymer.
Explanation:
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