Ecosystem and its Components
Ecosystem and its Components: Overview
This topic covers concepts, such as, Our Environment, Ecosystems, Secondary Consumers & Tertiary Consumers etc.
Important Questions on Ecosystem and its Components
Assertion: A network of food chains existing together in an ecosystem is known as food web.
Reason: An animal like Kite cannot be part of food web.
In a food chain given below, which produces the food for herbivore?
Plants → Goat → Man
The physical and biological world where we live in _____. (atmosphere/environment)
Secondary consumers are those which feed on primary consumers (herbivores). They can either be carnivores or omnivores.
In the following food chain, plants provide of energy to rats. How much energy (in joules) will be available to hawks from the snakes?
In the following food chain, of energy is available to man. How much energy (in joules) was available at the producer level?
Why does a person feel breathlessness at the higher altitude?
Looking at the table, name the creatures that eat both plant food and the flesh of other creatures.
| S. No | Name of creatures | Food |
| 1 | Buffalo | Grass, grain, straw etc. |
| 2 | Cat | Meat, rat, etc. |
| 3 | Rat/mouse | Fruits and nuts, meats |
| 4 | Crow | Insects, seeds, grains, nuts, fruit, meat, etc. |
| 5 | Goat | Grasses, weeds, grain. |
| 6 | Spider | Insects |
| 7 | Tiger | Other animals |
| 8 | Hen | Fruits, vegetables, grains, insects |
| 9 | Vulture | Dead animals |
| 10 | Lizard | Insects and small animals |
| 11 | Bed bug | Blood of other mammals |
| 12 | Worms | Decaying plant and animal matter from the soil |
| 13 | Monkey | Nuts, fruits, seeds, bird's eggs, insects |
| 14 | Dog | Meat, fish, vegetables and rice |
| 15 | Man | Meat, nuts, fruits, eggs, vegetables, seeds, etc. |
| 16 | Honey bee | Nectar |
| 17 | Mosquito | Blood, plant nectar |
The producer level of an energy pyramid contain the maximum energy.
Growth of thread-like structures along with the gradual spoilage of tomato can be observed when a cut tomato is kept aside for four days. Interpret the causes for this change.
Which of the following is a biotic component of the ecosystem?
An ecosystem consists of biotic and abiotic components.
The correct option related to primary consumer among the following is:
At every trophic level, the amount of energy lost and retained is generally _____, respectively.
A food web consists of all the _____ in a single ecosystem.
Complete the analogy.
Plants : Producers :: Animals : _____
Which of the following constitutes a food chain:
