Answer:
Antioxidants are the compounds that inhibit oxidation. Oxidation in the body produces free radicals, which initiates a series of reactions which is harmful the organisms.
Antioxidant are important to include in diet to stop the formation of free radicals. This helps in improving the overall health of the individual and effective at preventing diseases.
Vitamin C and Vitamin E have antioxidant property which stops the cascade of reaction which harms the body. It also reduces the chances of cardiovascular diseases.
Answer: The cornea is avascular.
Explanation:
The cornea can be defined as the clear front membrane on the surface of eyeball. It lies in the front of the iris and pupil. It allows the light to enter the eye. A cornea transplant is recommended in patients who suffer from vision problems due to thinning of cornea, keratoconus, loss of vision and cloudiness of cornea.
It takes about 2 to 3 months to recover after surgery. The healing is slow because the cornea is avascular. The tissue of cornea does not provide blood vessels to deliver nutrients and oxygen which could aid in speedy recovery.
used for randomly selected values X and Y from two populations
For comparing two small sets of observations,
gives insight into the meaning of the U statistic,
Answer:
Benefits and Advantages of encoder:
Highly reliable and accurate.
Higher resolution.
Low-cost feedback.
Integrated electronics.
Compact in size.
Fuses optical and digital technology.
It can be incorporated into existing applications.
Drawback and Disadvantages of an encoder:
The subject of magnetic radio interference.
Susceptible to dirt, oil and dust contaminate.
Direct light source interference.
Explanation:
Answer:
Since this question has multiple subquestions in it, I will give you the answer to them as follows:
1. Which neuron would activate a muscle? They are called multipolar neurons, they are found mostly originating from the CNS itself and they are multipolar because when a neuron stimulates a muscle, one signal from just one terminal is not enough; it requires the stimulation from several neurnal terminals.
2. Which neuron would be found in the retina of the eye? A bipolar neuron. This is because these neurons will fulfill a double function: to activate the muscles of the retina, and also they will convey messages taken by the sense of sight, towards the brain for interpretation and integration.
3. Which neuron is a sensory neuron found in a reflex arc? The answer again is a unipolar neuron. These neurons will not reach the brain itself, but rather the reflex arc site on the spinal cord. Their task is to relay sensations from the site that has been stimulated to the spinal cord and from there to the affected place, with the correct response.
4. Which neuron is never myelinated? Again the answer is the bipolar neurons found connecting the retina and the eyes. The reason is that these neurons are capable of relying fast messages to and from the brain, whereas in myelinated ones, messages go slower due to the myeling sheaths.
5. Which neuron is typically involved in the special senses of sight and smell? Once more the answer is the bipolar neurons that are most commonly found connecting the different organs of these two senses. Since these have such unique capabilities: relying information for integration and sensory and motor responses, their action potentials travel fast, and have a short distance to go.
