what are the response for abiotic factor
Answers
There are 4 abiotic factors:
Regulate – It is the mechanism used by organisms to maintain a constant condition in the body. For example, humans have the ability to maintain homeostasis in terms of body temperature. .
Migrate – Some organisms travel to far off places during a particular weather condition and return when the weather condition is restored.
Suspend – Some organisms have different mechanisms to escape harsh environment like that of spore formation. A bear going to hibernation during winter is another example.
Conform – Most of the organisms do not have the ability to regulate their body condition and they have a fluctuating bodily condition as per the environment.
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- An organism needs to change its physical and behavioral patterns with respect to seasonal changes in climate,to maintain the internal body temperature , water levels. In short to maintain homeostasis.
- Such responses can be in the form of Regulation, Conformation , Migration , Suspension and Adaptation
- Homeostasicity of these organisms is self regulatory. In other words, independent of the external environment
- Regulation of Temperature is known as Thermoregulation and Regulation of Water Concentration is known as Osmoregulation
- Large amounts of energy is dissipated while regulation.
For example,
On a hot sunny day,the blood vessels dilate (vasodilation) to compensate for the heat gained while in a cold winter the blood vessels constrict (vasoconstriction) to stop any heat loss from the body
- Organisms whose internal environment is variable with the external conditions
- Conformers have an evolutionary advantage over regulators,that Conformers dissipate relatively lower amounts of energy for regulation of internal equipoise
For example,
Observed in Reptiles
- Migration is an example of Behavioral Response to Abiotic Factors
- Organisms in order to escape the changing unfavorable climate , travel to distant more suitable places for the purposes of survival and even breeding
For example,
The artic tern flies from the breeding grounds artic to the antartic as the fall starts
- Period of minimal or no growth
- Dormancy : During unfavorable conditions,seed doesn't germinate rather stays dormant. Nutrition and protection during dormancy are provided to the seed by Endosperm and Seed Coat respectively.
- Hibernation : As the winter starts to set in the antartic,animals like polar bear go into sleep for a long period of time
- Aestivation : "Summer sleep",organisms hid deep underground to escape the scorching heat during the summer. Example,earthworm
- Diapause : A suspended stage of growth,seen in zooplanktons
- Change in physical, behavioral , mental attributes of an organism for the better is known as Adaptation. Penguins have a blubber of fat that insulates them from the chills of antartica
- Allen's Rule : Warm blooded animals with distinct populations, inhabitating the poles have shorter limbs and ears than their cousins in the tropic and savanna
For example,
Fennec Fox has larger limbs and ears when compared to Artic Fox.