Adaptation is defined as the process of adjustment of an organism with its environment.
The plants which grow, derive food, multiply and adjust themselves inside water are called aquatic plants. The animals which grow, multiply and adjust themselves inside water are called aquatic animals. This note provides us the information about adaptation and adaptation of hydrophytes.
Any three adaptive features of aquatic animals are as follows:
a) They have a streamlined body which is spindle shaped.
b) The entire body is covered with water proof scales.
c) Gills are present on the lateral sides.
Three Adaptive features of aquatic plants (hydrophytes) are as follows:
a) Underdeveloped conducting tissues (xylem and phloem) are present.
b) The plants body covered with waxy substance.
c) The stems are long, soft and spongy.
Any two characteristics of terrestrial animals are:
i) The legs and phalanges of terrestrial animals are modified according to their prey habit, habitat and climate.
ii) The animals of cold climate possess thick skin and long hairs and furs but of hot climate they have skin and short hairs.
Organism survives in low freezing temperature by the following ways:
i) The organism seen at low temperature are white coloured which helps them in thermal regulation and in camouflage.
ii) These animals eat a lot during summer and autumn to store energy in the form of fat so they simply get for winter sleep during winter.
iii) The plants on cold region are short in height and bear narrow leaves.