The animal that can regenerate its lost body parts to a remarkable extent is: MCQ with Answer and Explanation

Explanation:
Neutrophils are the most abundant white blood cells and are part of the innate immune system. They quickly migrate to infection sites, where they phagocytose bacteria and release antimicrobial substances. Lymphocytes are for adaptive immunity, eosinophils combat parasites, basophils release histamine.

Explanation:
Iodine deficiency impairs thyroid hormone synthesis, leading to elevated TSH and enlargement of the thyroid gland (goiter). Iodized salt prevents it.

Explanation:
A food chain is a linear, simplified sequence showing the transfer of energy and matter from one organism to another through consumption. A food web is a more realistic, complex network of interconnected food chains, illustrating the multiple feeding relationships and pathways of energy flow in an ecosystem. While nutrients (matter) are continuously recycled in an ecosystem through biogeochemical cycles, energy flows unidirectionally and is eventually lost as heat; it is not recycled. Thus, statements 1 and 2 are correct.