What is adaptation ?Give an example.
Answers
Answer:When people speak about adaptation, they often mean a 'feature' (a trait) which helps an animal or plant survive. An example is the adaptation of horses' teeth to grinding grass. Grass is their usual food; it wears the teeth down, but horses' teeth continue to grow during life.
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Answer:
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Adaptation is the process of change by which an organism or species becomes better suited to its environment
Explanation:
The adaptation of animals and plants to their environment is a series of varied biological processes with varying purposes, but the general purpose is the continued survival of the species. This is key to the difference between an animal's adaptation and ability.
Examples:
Adaptations in Kangaroo Rat:
a. The kangaroo rat in North American deserts is capable of meeting all its water requirement by internal oxidation of fat (water is a byproduct) in absence of water.
b. It can concentrate its urine, so that minimal volume of water is used to expel excretory products.
Adaptations in Desert Plants:
(Xerophytic Plants)
a. Roots grow very deeply to explore any possibility of available underground water. Proline is a typical osmolyte, synthesised by plants under different environmental stress conditions in xerophytes.
b. Many desert plants have a thick cuticle on their leaf surfaces and have their stomata arranged in deep pits to minimise water loss through transpiration. They have special photosynthetic pathway (CAM) that enables their stomata to remain closed during day time and to minimise the transpiration.
c. Some desert plants like Opuntia, have no leaves. They are reduced to spines and photosynthesis occurs in flattened stems.
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