Advertisements
Advertisements
प्रश्न
A population has more young individuals compared to the older individuals. What would be the status of the population after some years?
पर्याय
It will decline
It will stabilise
It will increase
It will first decline and then stabilise
Advertisements
उत्तर
It will increase
APPEARS IN
संबंधित प्रश्न
Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.
Association between sea anemone and Hermit crab in gastropod shell is that of.
Name the type of association: Crow feeding the hatchling of Koel
The relationship between sucker fish and shark is _________.
The interspecific interaction between Cuckoo and Crow is ______
Type of interspecific interaction wherein one organism is benefited and other is harmed is called ____________.
______ interaction is the biological interaction between organisms of same population.
Match the Columns.
| Column A | Column B | ||
| i. | Lice on humans | a. | Endoparasites |
| ii. | Ectoparasites on marine fishes | b. | Grows on hedge plants |
| iii. | Cuscuta | c. | Ectoparasites |
| iv. | Plasmodium and humans | d. | Copepods |
Which of the following is NOT an example of mutualism?
Which one of the following is an example of predation?
Which one of the following pair does NOT show commensalism?
In spite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?
Define ectoparasite and endoparasite and give suitable examples.
Give one example for the following type.
Biological control agent
Give one example for the following type.
Chemical defense agent
Observe the set of 4 figures A, B, C and D and, answer the following questions
- Which one of the figures shows mutualism?
- What kind of association is shown in D?
- Name the organisms and the association in C.
- What role is the insect performing in B?
 Fig. (A) |
 Fig. (B) |
 Fig. (C) |
 Fig. (D) |
In an aquarium two herbivorous species of fish are living together and feeding on phytoplanktons. As per the Gause’s Principle, one of the species is to be eliminated in due course of time, but both are surviving well in the aquarium. Give possible reasons.
"Abingdon tortoise in Galapagos islands became extinct within a decade on introduction of goats in the island." Explain giving reason.
Given below are two statements.
Statement I - The amount of energy available in an ecosystem increases at each successive trophic level.
Statement II - Transfer of energy from one trophic level to the other follows 10% law.
In light of the above statements, select the correct option given below.
