Advertisements
Advertisements
Question
(a) Draw a pyramid of numbers where a large number of insects are feeding on the leaves of a tree. What is the shape of this pyramid?
(b) Will the pyramid of energy be also of the same shape in this situation? Give a reason for your response.
Advertisements
Solution
(a) Inverted pyramid because a large number of insects feed on one tree.
(b) No, the Pyramid of Energy is always upright and cannot be inverted because some energy is constantly lost as heat at each trophic level as it moves from one to the next.
APPEARS IN
RELATED QUESTIONS
Which organisms constitute the last trophic level?
Secondary consumers are __________.
Give an example of an ecosystem that shows an inverted pyramid of numbers.
Give an example of an ecosystem that shows an inverted pyramid of biomass.
In a pyramid of biomass, if the total dry weight (kgm-2) of primary produces is about 809, it well increases at tertiary consumer level up to ______.
Give a scientific reason:
The pyramid of energy is always upright.
| In a forest ecosystem, a large population of insect feeds upon a banyan tree. Several small birds feed upon these insects. The small birds are fed upon by big-sized birds. |
- With respect to this ecosystem, draw a pyramid for each biomass and a pyramid of number.
-
If 20,000 Kcal energy is available at the level of insects, calculate the amount of energy available at the level of big-sized birds.
Which statement explains the inverted pyramid of biomass in oceanic ecosystems?
In most ecosystems, which three ecological pyramids are upright?
Which organisms are not included in ecological pyramids even though they play a vital role in the ecosystem?
