Definition. (1) (botany) The arrangement of petals (as well as sepals) within a flower bud that is yet to open. (2) (zoology) The lack of or slowing of activity and metabolism during hot, dry season such as summer; summer dormancy; prolonged and deep torpor during the hot, dry season.
Table of Contents
What is aestivation class 11 biology?
Aestivation is the mode of arrangement of sepals or petals in the floral bud with respect to the other members of the same whorl.
What is meant by aestivation in flowers?
Aestivation (in botanical terms) is the arrangement of sepals and petals in floral buds with respect to other members of the whorl. It is often confused with vernation, which is the arrangement of scales and new leaves in a leaf bud before it opens. The sepals and petals are collectively known as a perianth.
What is aestivation Class 11 which lesson?
Aestivation or estivation is the positional organisation of the sections of the flower inside the bud of the flower before it is opened. That is also the manner in which sepals or petals are arranged in a flower bud with respect to the other members of the same whorl. Types of aestivation are: 1.
What is called aestivation?
Aestivation (Latin: aestas (summer); 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.
What is aestivation short answer?
Hibernation or “winter sleep” is the state of inactivity or low metabolic process performed by the animals during winters. Aestivation or “summer sleep”, on the other hand, is the low metabolic process by the animals during summers.
What is aestivation and its four types?
Aestivation: The term ‘aestivation’ refers to the mode in which sepals or petals are arranged in a floral bud with respect to other floral members. There are four types of aestivation in plants i.e., valvate, twisted, imbricate, and vexillary.
What is aestivation class 12th?
Aestivation, otherwise called as ‘summer sleep’ is the period during which the animal stays inactive for a long time. During this period, the animal doesn’t perform any much energy consuming activities. This is a kind of adaptation to escape from unfavourable conditions such as high temperature etc.
What is summer sleep called?
Aestivation is also known as summer sleep. Animals search moist and shady places mainly to sleep. In aestivation, the homeostasis of the body is maintained to prevent excessive loss of water from the body.
What is aestivation and types with example?
Aestivation is defined as the specific arrangement of the members of the perianth, i.e. sepals and petals with respect to each other. Flowers can be classified based on the type of aestivation. Different types of aestivation in plants are valvate, twisted, imbricate, vexillary, and quincuncial aestivation.
How do you say aestivation?
Who discovered aestivation?
The aestivation hypothesis is a hypothesized solution to the Fermi paradox conceived in 2017 by Anders Sandberg, Stuart Armstrong and Milan M. ฤirkoviฤ.
What is aestivation biology class 9?
Aestivation is the mode of arrangement of sepals or petals in a floral bud with respect to the other members of the same whorl.
What animals use aestivation?
The animals that undergo aestivation include earthworms, frogs, bees, snails, salamanders, tortoises, and crocodiles. Hibernation aids in regulating the body temperature and helps in avoiding any damage to the body due to the low temperature.
What is called hibernation?
hibernation, a state of greatly reduced metabolic activity and lowered body temperature adopted by certain mammals as an adaptation to adverse winter conditions. A brief treatment of hibernation follows.
What is aestivation Mcq?
Solution(By Examveda Team) Aestivation is summer sleep and during aestivation, animals usually tend to rest in a shady and cool place. They take sleep during the hot hours of daytime. Hibernation is a winter sleep and in this sleep, an organism tend to pass the time in dormant conditions. They are not active at all.
What is hibernation and aestivation explain with suitable example?
Explanation: As hibernation is the sleep during the winter, the animals look out for the warmer place, their metabolic activities slow down, and it is the dormant stage. Aestivation is a summer sleep, so animals search for the moist, shady and cool place to sleep. Examples. Bats, birds, mammals, insects, etc.
What is hibernation for class 4th?
Hibernation is when animals have long periods of deep sleep during winter. Their metabolism, or the rate the body burns calories, slows down to save energy. Their breathing and heart rate also slow down to save energy and their temperatures also drop during hibernation.
Do snakes hibernate?
Yes, snakes do hibernate, just not in the traditional way we think of hibernation. Instead, they go into something called brumation in the winter. They have to go into this state of partial dormancy or partial sleep because they need to conserve energy for breeding and other activity in the warm weather months.
What do frogs do during the winter?
During the winter, they go into a state of hibernation, and some can be exposed to temperatures below freezing. Aquatic frogs, like our own southern leopard frog (Rana pipiens), usually spend the winter at the bottom of a pond or other body of water. But they don’t burrow down into the mud.
What is aestivation explain any two types of aestivation?
Aestivation means arrangement of accessory floral organs(sepals or petals) in relation to one another in a flower. Some types of Aestivation: Open: Margins of adjacent petals are not overlapping / touching others.
What is Quincuncial Aestivation?
It is a type of imbricate aestivation where the petals begin overlapping from the anterior end to the posterior end. The whorl of the perianth is arranged in a spiral fashion.
How do you speak camouflaging?
How do you read camouflage?
What is the role of aestivation in plants?
Aestivation is one of the floral characteristics, which demonstrates the organization of calyx (sepals) and corolla (petals) relative to each other, in a floral bud.