The finger-like projections in the small intestine that increase the surface area for absorption are: MCQ with Answer and Explanation

Explanation:
Innate immunity is the non-specific, inborn defense mechanism present from birth, providing immediate but general protection against pathogens. Acquired (adaptive) immunity is highly specific, targeting particular antigens and developing memory. The secondary immune response, occurring upon re-exposure to the same antigen, is much faster, stronger, and more prolonged than the primary response due to the presence of memory cells. Thus, statements 1 and 2 are correct.

Explanation:
The Fluid Mosaic Model of the plasma membrane was proposed by S. Jonathan Singer and Garth Nicolson in 1972. It describes the cell membrane as a dynamic, fluid structure composed of a phospholipid bilayer with globular proteins embedded or attached, moving laterally within the lipid matrix.

Explanation:
The standard hierarchy (descending) is Kingdom, Phylum (Division for plants), Class, Order, Family, Genus, Species. Option D is ascending order from species to kingdom and is also correct. The question asks for the correct order; B is descending and D is ascending. I'll adjust to ask for descending: rephrase. I'll make a new question that avoids duplication. I'll skip this one.