- Home
- Standard 12
- Biology
12.Ecosystem
medium
Distinguish between
$(a)$ Upright and inverted pyramid
$(b)$ Food chain and Food web
Option A
Option B
Option C
Option D
Solution
$(a)$ Upright and inverted pyramid
| Upright pyramid | Inverted pyramid |
| $1$. The pyramid of energy is always upright. | $1$. The pyramid of biomass and the pyramid of numbers can be inverted. |
| $2$. In the upright pyramid, the number and biomass of organisms in the producer level of an ecosystem is the highest, which keeps on decreasing at each trophic level in a food chain. | $2$. In an inverted pyramid, the number and biomass of organisms in the producer level of an ecosystem is the lowest, which keeps on increasing at each tropic level |
$(b)$ Food chain and Food web
| Food chain | Food web |
| $1$. It is a single linear sequence of organisms. | $1$. It contains a number of interconnected food chains. |
| $2$. Members present at higher trophic levels feed on single types of organisms. | $2$. One organism has alternate food sources. |
Standard 12
Biology
Similar Questions
medium
