Answer:
The third period contains eight elements: sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon........
Explanation:
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<span>Eyes are sensitive to light and when light falls on them, they transmit electrical signals to the brain. The lens in the eye focuses light falling on it, on to the retina. Depeding on the amount of light and distance of objects from the eyes, the lens changes shape to allow focus on objects at varying distances and this is called accommodation.</span>
<h3><u>Answer;</u></h3>
illness anxiety disorder
<h3><u>Explanation;</u></h3>
- <em><u>illness anxiety disorder sometimes known as hypochondriasis, is a disorder in which people strongly believe they have a serious or life-threatening illness despite having no, or only mild, symptoms</u></em>.
- The symptoms of illness anxiety disorder include; Excessive worry over having or getting a serious illness, physical symptoms are not present or if present, only mild, fear of illness which is normally not due to another mental disorder and excessive health-related behaviors.
I think the correct answer is A
Answer:
The correct answer will be option-B.
Explanation:
Sertoli cells are the large somatic cells present in the testis which helps in the formation of spermatozoa. The Sertoli cells create a suitable environment for the production and maturation of the sperms as they produce certain molecules which nourishes the sperms.
The Sertoli cells act as a barrier between the testis and blood and secrete enzymes like inhibin. They eliminate the apoptotic germ cells and also produce seminiferous fluid to nourish the sperm. They do not play any role in primary spermatocytes.
Thus, Option-B is the correct answer.
