- ALiver
- BSpleen
- CBone marrow
- DLymph nodes
Explanation:
T cells (thymus cells) and B cells (bone marrow-derived cells) are the major cellular components of the adaptive immune response.
T cells are involved in cell-mediated immunity, whereas B cells are primarily responsible for humoral immunity (relating to antibodies).
The function of T cells and B cells is to recognize specific “non-self” antigens, during a process known as antigen presentation.
Once they have identified an invader, the cells generate specific responses that are tailored to maximally eliminate specific pathogens or pathogen-infected cells.
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$R$ - $MMC$ is a large cell containing dense cytoplasm and a prominent nucleus
| Column $- I$ | Column $- II$ |
| (a) Saprophyte | (i) Symbiotic association of fungi with plant roots |
| (b) Parasite | (ii) Decomposition of dead organic materials |
| (c) Lichens | (iii) Living on living plants or animals |
| (d) Mycorrhiza | (iv) Symbiotic association of algae and fungi |
Choose the correct answer from the options given below
$(a)\quad (b)\quad (c)\quad (d)$