limphatic Capillary can remove, fat, bacteria due to:

Correct Answer: B

Rationale: Lymphatic capillaries remove fat and bacteria due to gaps in endothelium and interrupted basal lamina, not tight junctions or non-fenestrated cells.

Correct Answer: D

Rationale: Palatine tonsils have non-keratinized epithelium , glands opening into crypts , and nodules ; they are non-capsulated but prone to inflammation (D is incorrect).

Correct Answer: C

Rationale: T-lymphocytes enter lymph nodes via post-capillary venules ; figure context suggests lymph node, not tonsil , spleen , or efferent entry .

Correct Answer: D

Rationale: Macrophages are part of innate immunity; T cells , antibodies , and B cells are components of adaptive immunity.

Correct Answer: A

Rationale: NK cells produce cytokines and release cytotoxic chemicals ; they detect missing MHC I (C indirectly), not general traits , and activate macrophages secondarily.