The pigment that gives red algae their characteristic color is: MCQ with Answer and Explanation

Explanation:
The water vascular system is a unique network of fluid-filled canals found exclusively in Echinodermata (e.g., starfish, sea urchins). It is primarily used for locomotion (via tube feet), capturing and handling food, and respiration. Adult echinoderms exhibit radial symmetry, while their larvae are bilaterally symmetrical.

Explanation:
Malaria is transmitted by Anopheles mosquito; P. falciparum causes severe, often fatal malaria. Amoebic dysentery is Entamoeba, sleeping sickness Trypanosoma, giardiasis Giardia.

Explanation:
Dolly (1996) was created by somatic cell nuclear transfer (SCNT), where the nucleus from an adult somatic cell (udder) was transferred into an enucleated egg cell, which was then implanted in a surrogate. This proved that differentiated somatic cells can be reprogrammed to totipotency. She was the first mammal cloned from an adult cell.