All eco-systems begin with energy input from-
Sun
Firewood represents stored chemical energy, derived from plants that initially captured energy from the sun. However, the question asks about "All" ecosystems, and the Sun is the dominant, initial energy source for the vast majority.
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 : - Food web consists of different types of __________.
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:
