The glomerulus functions as an excretory organ in hemichordates. Soluble wastes are collected from the blood by the glomerulus, lying within the proboscis cavity, and excreted from that cavity through a dorsal pore (an opening on the upper side) to the outside.

Correct Option: A

The glomerulus functions as an excretory organ in hemichordates. Soluble wastes are collected from the blood by the glomerulus, lying within the proboscis cavity, and excreted from that cavity through a dorsal pore (an opening on the upper side) to the outside.

Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Cornstarch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.

Correct Option: C

Custard powder is primarily made up of thickeners that give the pudding its texture. It is primarily made from edible maize starch or corn flour. Cornstarch is great for thickening liquids, dissolves easily and is almost foolproof. The powder also contains flavorings such as vanilla.

Smallpox was an infectious disease caused by either of two virus variants, Variola major and Variola minor. After vaccination campaigns throughout the 19th and 20th centuries, the WHO certified the global eradication of smallpox in 1979. Smallpox is one of two infectious diseases to have been eradicated, the other being rinderpest which was declared eradicated in 2011.

Correct Option: C

Smallpox was an infectious disease caused by either of two virus variants, Variola major and Variola minor. After vaccination campaigns throughout the 19th and 20th centuries, the WHO certified the global eradication of smallpox in 1979. Smallpox is one of two infectious diseases to have been eradicated, the other being rinderpest which was declared eradicated in 2011.

The Miller–Urey experiment of 1952 simulated the conditions thought at the time to be present on the early Earth, and tested the chemical origin of life under those conditions in a laboratory. The experiment demonstrated how amino acids could be generated in a lab environment from simple compounds subjected to electrical discharges in the early Earth’s atmosphere. The spontaneous creation of amino acids was used in this experiment to explain life’s origins by chemosynthesis.

Correct Option: C

The Miller–Urey experiment of 1952 simulated the conditions thought at the time to be present on the early Earth, and tested the chemical origin of life under those conditions in a laboratory. The experiment demonstrated how amino acids could be generated in a lab environment from simple compounds subjected to electrical discharges in the early Earth’s atmosphere. The spontaneous creation of amino acids was used in this experiment to explain life’s origins by chemosynthesis.

The sea mammal Dugong is found in the Gulf of Mannar biosphere reserve. It feeds on sea grasses like Halodule uninervis which occur in abundance in the waters around the Krusadai and Shingle islands and off the coast of Mandapam. Gulf of Mannar is the first Marine Biosphere Reserve not only in India, but also in south and Southeast Asia.

Correct Option: A

The sea mammal Dugong is found in the Gulf of Mannar biosphere reserve. It feeds on sea grasses like Halodule uninervis which occur in abundance in the waters around the Krusadai and Shingle islands and off the coast of Mandapam. Gulf of Mannar is the first Marine Biosphere Reserve not only in India, but also in south and Southeast Asia.