food chains
Food Webs: Components Explained
A food web illustrates how energy flows through an ecosystem. Unlike a single food chain, which shows a linear sequence of organisms eating one another, a food web displays multiple, interconnected food chains.
Key points:
- A food web shows the complex feeding relationships within a habitat.
- It is composed of various food chains linked together.
- It represents a more realistic model of energy transfer than a single food chain.
Therefore, a food web consists of different types of food chains.
Important Questions from Ecology and Ecosystem
- Consider the following statements and choose the correct one:
A. 'Bio' is a Greek word means life
B. Biosphere is an integral part of the earth system which supports all kinds of life
C. All the biological components of the Earth living as well as the dead, fall in the category of biosphere.
D. The term 'Biosphere' has been coined by Peter Suess.
Choose the correct answer from the options given below : Which of the following statements are correct about nutrient cycle ?
A. Carbon dioxide gas which makes up about 0.040% of the volume of the earth's atmosphere
B. Specialised bacteria convert most of the $NH_3$ and $NH_4^+$ in the soil to nitrate ions $NO_3$-
C. Phosphorus does cycle through the atmosphere and its cycle is fast
D. Much of the earth's sulfur is stored underground in rocks and minerals
Choose the most appropriate answer from the options given below:- Which of the following statements are correct about 'ecological succession'?
A. Gradual Change in species composition in a given area is called ecological succession
B. Primary ecological succession does not involve the gradual establishment of communities in lifeless areas
C. Secondary ecological succession means series of ecosystems of different species develop in places containing soil
D. Ecological succession is not an important ecosystem service
Choose the most appropriate answer from the options given below : The role and position of an organism in the ecosystem encompassing both the physical space it occupies and its functional role with in the community is known as:
- Notice the following energy flow components and organize the flow of energy from the origin to end.
A. Plants
B. Electricity
C. Fossilization
D. Power Plants
E. Sun
Choose the correct answer from the options given below :
