Advertisements
Advertisements
प्रश्न
In a pond, we see plants which are free-floating; rooted–submerged; rooted emergent; rooted with floating leaves; Write the type of plant against the following examples.
| Plant Name | Type | |
| a. | Hydrilla | ______ |
| b. | Typha | ______ |
| c. | Nymphaea | ______ |
| d. | Lemna | ______ |
| e. | Vallisneria | ______ |
Advertisements
उत्तर
| Plant Name | Type | |
| a. | Hydrilla | Submerged |
| b. | Typha | Rooted emergent |
| c. | Nymphaea | Rooted with floating leaves |
| d. | Lemna | free – floating |
| e. | Vallisneria | Rooted Submerged |
APPEARS IN
संबंधित प्रश्न
Apart from being a part of the food chain, predators play other important roles. Mention any two such roles supported by examples.
Answer the following question.
Mention the term used to describe a population interaction between an orchid growing on a forest tree.
Name the type of association: Hummingbirds and host flowering plants
Name important defense mechanisms in plants against herbivores.
Define population growth. Explain different types of age pyramids.
______ is the adaptation of an organism i which it matches its colour with its surroundings to get protected from predators.
Parasitism can be conectly represented as ____________.
Cattle egrets always foraging close to the grazing cattle is an example of ____________.
Rafflesia an arnoldii is an example of ______.
Which one of the following is one of the characteristics of a biological community?
Amensalism can be represented as ______
What is the interaction between two species called?
Give one example for the following type.
Camouflaged animal
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.
A Tight one-to-one relationship between many species of fig tree and certain wasps is an example of ______.
Describe mutualism.
Which one of the following statement INCORRECT regarding competition?
Statement I: Gause’s competitive exclusion principle states that two closely related species competing for different resources cannot exist indefinitely.
Statement II: According to Gause’s principle, during competition, the inferior will be eliminated. This may be true if resources are limiting.
In the light of the above statements, choose the correct answer from the options given below:
