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The key difference between hearing aid and
cochlear implant is that [Best answer ]
A.
the hearing aid codes the sound into electrical
pulses.
B.
the hearing aid directly stimulates the auditory
nerves in the cochlea.
C.
the cochlear implant codes the sound into
electrical pulses.
D. the cochlea uses a speaker to stimulate the ear.
Electrocardiogram (ECG) is [Best answer ]
A. generated by the nerve cells in the heart.
B. independent of rhythm of the heart
contraction.
C.
measured on the body surface, providing a
non-invasive diagnosis tool for heart disease.
The most significant differences between axon of
neuron and electric cable is that [ Best answer]
A. the axon attenuates the electric signal whereas
electric cable does not.
B. the axon and electric cable propagate electric signal
at the same speed.
C. the axon propagates electric signal at constant
amplitude at lower speed than in electric cable.
D. the axon propagates electric signal at constant
amplitude at same speed as in electric cable.
state Wien displacement law
The paleness of a person’s face when looking from a high place indicates the secertion of what hormone?
investigation to find out if a pheromone trap would help to control the
leaf miner.
Why is recycling of electron carriers and ATP is important for the cell
Given the general equation below of photosynthesis, encircle the raw material and product of the light - independent reaction (calvin cycle) stage of photosynthesis.
6CO2 + 6H20 + sunlight → C8H12O6 + 602
Raw milk from a farm was found to contain 3 104
bacterial cells per millilitre when analysed at
the dairy. Before being packaged, the milk is pasteurised so that the milk contains not more than
10 cells per millilitre.
1.1 What is the minimum time the milk has to be heated if the D63 value is 8 minutes?
Discuss the Born-Haber cycle for the formation of a hypothetical compound NaCl2.
