Explain the following terms with suitable examples: a. Migration b. Hibernation c. Aestivation d. Nocturnal e. Camouflage
Answers
Explanation:
Hibernation is a state of minimal activity and metabolic depression in endotherms. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It most commonly occurs during winter months.
Migration, in ecology, is the large-scale movement of members of a species to a different environment. Migration is a natural behavior and component of the life cycle of many species of mobile organisms, not limited to animals, though animal migration is the best known type. Migration is often cyclical, frequently occurring on a seasonal basis, and in some cases on a daily basis. Species migrate to take advantage of more favorable conditions with respect to food availability, safety from predation, mating opportunity, or other environmental factors.
Nocturnality is an animal behavior characterized by being active during the night and sleeping during the day. The common adjective is "nocturnal", versus diurnal meaning the opposite.
Aestivation or æstivation (from Latin: aestas, summer, but also spelled estivation in American English) is a state of animal dormancy, similar to hibernation, although taking place in the summer rather than the winter. Aestivation is characterized by inactivity and a lowered metabolic rate, that is entered in response to high temperatures and arid conditions. It takes place during times of heat and dryness, the hot dry season, which are often the summer months.
Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the battledress of a modern soldier, and the leaf-mimic katydid's wings. A third approach, motion dazzle, confuses the observer with a conspicuous pattern, making the object visible but momentarily harder to locate.
Answer:
a. Migration is a way to move from one place to another in order to live and work. The movement of people from their home to another city, state or country for a job, shelter or some other reasons is called migration.
b. Hibernation is a deep sleep that helps them to save energy and survive the winter without eating much. During hibernation, the animal's body temperature drops, and its heartbeat and its breathing slow down so that it does not use much energy.Examples : Reptiles and amphibians , bees etc
c. Aestivation is characterized by inactivity and a lowered metabolic rate, that is entered in response to high temperatures and arid conditions. It is similar to hibernation, although taking place in the summer rather than the winter. Some amphibians like crocodiles, and salamanders aestivate..
d. If something is nocturnal, it belongs to or is active at night. You've probably heard of nocturnal animals, like bats,cockroaches and fireflies, who sleep during the day and come out to play when the sun goes down.
e. Camouflage, also called cryptic coloration, is a defense or tactic that organisms use to disguise their appearance, usually to blend in with their surroundings. ... Animals with fur are more often camouflaged by season. The arctic fox, for example, has a white coat in the winter, while its summer coat is brown.
Explanation:
Hope this helps you..