Which of the following diseases is transmitted by the bite of an infected female Anopheles mosquito? MCQ with Answer and Explanation

Explanation:
Rhodopsin (visual purple) in rod cells of the retina consists of opsin and retinal (derived from vitamin A). It bleaches in light, triggering nerve impulses. It is highly sensitive, enabling night vision. Iodopsin is in cones for color vision.

Explanation:
The endosperm is a triploid tissue in angiosperm seeds that stores starch, proteins, and lipids to nourish the embryo during germination. It is formed by double fertilization. In some seeds (e.g., legumes) the endosperm is absorbed and the cotyledons become storage organs. The seed coat protects.

Explanation:
Scoliodon is a cartilaginous fish (Chondrichthyes), possessing a cartilaginous endoskeleton, placoid scales, and ventral mouth. Rohu and Catla are bony fishes (Osteichthyes). Hippocampus is also a bony fish. Chondrichthyes include sharks, rays, and skates. They lack an air bladder and have to swim constantly to avoid sinking.