NEET BIOLOGY

Detailed explanation-1: -In a study published Monday in the Proceedings of the National Academy of Sciences, researchers have now identified the first animal that doesn’t use oxygen to breathe: Henneguya salminicola, an 8-millimeter white parasite that infects the flesh of Chinook salmon.

Detailed explanation-2: -Just like humans, all of the Chesapeake Bay’s living creatures-from the fish and crabs that swim through its waters to the worms that bury themselves in its muddy bottom-need oxygen to survive. Humans use their lungs to inhale oxygen from the air.

Detailed explanation-3: -All living things, from tiny cyanobacteria to giant blue whales, need water to survive. Without water, life as we know it would not exist. And life exists wherever there is water. All organisms, like animals and plants, use water: salty or fresh, hot or cold, plenty of water or almost no water at all.

Detailed explanation-4: -Humans and almost all other animals depend on oxygen in the atmosphere or water to respire-that is, to produce energy at the cellular level necessary for survival.