Answer:
The correct option is d. Serves as the site of T lymphocyte maturation
Explanation:
Thymus, a specialized primary organ of the nervous system, is a part of the lymphatic system. It is present in the upper front part of our chest, behind the sternum and between the lungs.
The thymus has two lobes, each containing a central medulla and a peripheral cortex surrounded by a outer capsule.
The main function of the thymus is the maturation of T cells or T lymphocytes and it occurs in the medulla of the thymus.
Therefore, the thymus provides a site for the T cells to mature.
The birth outcomes to emerge as significant correlates of co-use of Cannabis and tobacco cigarettes were small head circumference, and the occurrence of birth defects i.e. teratogenicity.
<h3>What is teratogenicity?</h3>
- Teratogenicity is the ability of a drug or chemical to cause fetal abnormalities or deformities.
- The drugs, chemicals, or even infections causing teratogenicity in fetus are called teratogens.
- Common teratogens includes some medications, recreational drugs, tobacco products, chemicals, alcohol, certain infections, and in some cases, uncontrolled health problems in the birthing parents.
- Teratogens are most harmful early in pregnancy, starting about 10 to 14 days after conception to about 8 weeks into pregnancy.
- Teratogens can cause neural tube defects such as spina bifida. Some organs are sensitive to teratogens during the whole pregnancy. This includes the brain and spinal cord of baby.
- Alcohol affects the brain and spinal cord, so it can cause harm at any time during pregnancy.
- To prevent teratogenicity avoid use of chemicals that may harm child like pesticides, fungicides, rodenticides or harsh cleaning products.
- Avoid smoking, and alcohol consumption to prevent teratogenicity.
To learn more about Teratogenicity,
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According to the research, the correct option is Period of invasion. The stage of an infectious disease when specific signs and symptoms are seen and the pathogen is at peak activity is the Period of invasion.
<h3>What is an infectious disease?</h3>
It is the disease that is due to the invasion of the body by pathogenic germs, which establish and multiply caused by a local cell injury, secretion of toxins or by the antigen-antibody reaction.
The stage of an infectious disease called the Period of invasion is the time interval between invasion by an infectious agent and the appearance of the first signs and symptoms of the disease.
Therefore, we can conclude that according to the research, the correct option is Period of invasion. The stage of an infectious disease when specific signs and symptoms are seen and the pathogen is at peak activity is the Period of invasion.
Learn more about stages of an infectious disease here: brainly.com/question/14454614
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