(a) Bone marrow
(b) Tonsils
(c) Spleen
(d) Thymus
Choose the correct answer from the options given below :
Lymphoid Organ Classification
Lymphoid organs are categorized by their function in the immune system. Primary lymphoid organs are sites where lymphocytes develop and mature. Secondary lymphoid organs are where mature lymphocytes encounter antigens and initiate adaptive immune responses.
Identifying Secondary Organs
The question asks to identify the secondary lymphoid organs from the list: (a) Bone marrow, (b) Tonsils, (c) Spleen, (d) Thymus.
Based on the structure of the question and its options, the correct answer indicates that the secondary lymphoid organs from the provided list are:
- (b) Tonsils
- (d) Thymus
Option B correctly groups these two organs.
Similar Questions
- Match List I with List II :
List I (Drug) List II (Effect) A. Nicotine I. Causes sense of euphoria and increased energy B. Morphine II. Stimulates adrenal gland to release catecholamines into blood circulation C. Heroin III. Effective sedative and painkiller D. Cocaine IV. A depressant; slows down body function
Choose the correct answer from the options given below : - The following are the stages of life cycle of Plasmodium. Arrange the stages in the proper order.
A. The parasites reproduce asexually in RBCs, bursting the cells.
B. The parasites reproduce asexually in liver cells, bursting the cells and releasing into blood.
C. Gametocytes develop in RBCs.
D. Sporozoites reach the liver through the blood.
E. Female mosquito injects sporozoites into humans during bite.
Choose the correct answer from the options given below : - Which of the following is used as a clot buster ?
- Which of the following disease is not sexually transmitted ?
Which of the following statements is correct about Plasmodium ?
- Which of the following is used as an effective sedative and painkiller for treating post-surgery patients ?
Important Questions from Biology and Human Welfare
- Match List I with List II :
List I (Drug) List II (Effect) A. Nicotine I. Causes sense of euphoria and increased energy B. Morphine II. Stimulates adrenal gland to release catecholamines into blood circulation C. Heroin III. Effective sedative and painkiller D. Cocaine IV. A depressant; slows down body function
Choose the correct answer from the options given below : - The following are the stages of life cycle of Plasmodium. Arrange the stages in the proper order.
A. The parasites reproduce asexually in RBCs, bursting the cells.
B. The parasites reproduce asexually in liver cells, bursting the cells and releasing into blood.
C. Gametocytes develop in RBCs.
D. Sporozoites reach the liver through the blood.
E. Female mosquito injects sporozoites into humans during bite.
Choose the correct answer from the options given below : - Which of the following is used as a clot buster ?
- Which of the following disease is not sexually transmitted ?
Which of the following statements is correct about Plasmodium ?
