Answer:
physical
Explanation:
science deals with physical things
Answer:
Test the effect of ultraviolet radiation on bacteria growth
The build up in the child's ear prevent sound from reaching the eardrum.
Answer:
Most nerve fibers from both divisions innervate many of the same effectors.
Most nerve fibers from both divisions share the same sites of origin.
The parasympathetic nervous system is responsible for controlling the homeostasis, resting and digestion functions of the body. The sympathetic nervous system controls the body's response against threat and fight and flight responses. Both parasympathetic and sympathetic nervous systems are responsible for the involuntary functions of the human body.
Most nerve fibers from both divisions share the same sites of origin because both have the nerve fibers that are originated from brain or spinal cord that are directed or passes to the targeted organs.
Most nerve fibers from both divisions innervate many of the same effectors so as to induce functions according to the bodily needs.
Answer:
A) they help transport some substances through the membrane.
Explanation:
The membrane proteins that span the bilayer of phospholipids help in the transport of polar, large and charged substances across the membrane. The nonpolar core of the membrane does not allow these charged and polar substances to pass through. Proteins serving as channels form pores to allow movement of the specific substances.
On the other hand, carrier transport proteins of the membrane bind to the substances present at one side of the membrane and deliver them to the opposite side.
