Describe the following pictures. [Textbook Question 6 pg no. 128]
Answer:
Picture no. 1 is showing a desert ecosystem, while the picture no. 2 is showing a forest ecosystem where a wetland (a lake) is also shown. In a desert ecosystem, the producers are green cactus and a palm trees. Since in the desert there are scanty rains, the vegetation is very less. The soil is sandy soil. The consumers of the desert are also limited.
In the above picture, the camel is shown which is a primary consumer in the desert ecosystem. Camel is very well adapted for desert life. There is also the scarcity of water in the desert and hence cactus shows xerophytic (suitable to survive in the desert) adaptations.
In the second picture, the forest ecosystem is shown because we can see the elephant and tiger in the picture. Also, a giant hornbill is sitting on the tree. This forest must be a tropical evergreen forest. The rainfall is heavy in such areas and hence different types of wetlands can be seen in forests. Wetlands support a variety of life. A separate aquatic ecosystem does exist here which is closely interconnected with the terrestrial ecosystems through food chains and the food web.
The birds utilize the fish as their prey. The wild animals come to wetlands to quench their thirst. In this picture, the plants, grass, etc. are producers, and small fishes in the lake are primary consumers. They will be eaten by larger fishes which are a secondary consumer in the aquatic ecosystem. The elephant is an herbivorous animal and hence it is a primary consumer. Snake is the secondary consumer while the birds of prey (eagle that is flying) and tiger are tertiary consumers.
Picture no. 1 is showing a desert ecosystem, while the picture no. 2 is showing a forest ecosystem where a wetland (a lake) is also shown. In a desert ecosystem, the producers are green cactus and a palm trees. Since in the desert there are scanty rains, the vegetation is very less. The soil is sandy soil. The consumers of the desert are also limited.
In the above picture, the camel is shown which is a primary consumer in the desert ecosystem. Camel is very well adapted for desert life. There is also the scarcity of water in the desert and hence cactus shows xerophytic (suitable to survive in the desert) adaptations.
In the second picture, the forest ecosystem is shown because we can see the elephant and tiger in the picture. Also, a giant hornbill is sitting on the tree. This forest must be a tropical evergreen forest. The rainfall is heavy in such areas and hence different types of wetlands can be seen in forests. Wetlands support a variety of life. A separate aquatic ecosystem does exist here which is closely interconnected with the terrestrial ecosystems through food chains and the food web.
The birds utilize the fish as their prey. The wild animals come to wetlands to quench their thirst. In this picture, the plants, grass, etc. are producers, and small fishes in the lake are primary consumers. They will be eaten by larger fishes which are a secondary consumer in the aquatic ecosystem. The elephant is an herbivorous animal and hence it is a primary consumer. Snake is the secondary consumer while the birds of prey (eagle that is flying) and tiger are tertiary consumers.
