Population
Population: Overview
This topic consists of various concepts like Biotic Community,Negative Interactions,Amensalism, etc.
Important Questions on Population
In a pond, there were 40 lotus plants. After a year, the number rose to 56. The birth rate of a lotus plant would be:
When an animals changes its body colour or body form and looks like another living organism, the phenomenon is called:
Essential information that can be obtained by studying the population density of an organism is,
Certain species of wasps are seen to frequently visit flowering fig trees. The interaction between them is:
The egrets always forage close to where the cattle are grazing. The interaction between them can be called:
Which of the following interactions play a key role in keeping an eye on the number of the population?
Which of the following variable is not involved in the exponential growth curve?
In the population growth curves shown below, ‘a’ and ‘b’ is representing:
Find the correct match of the organisms with the interaction they exhibit:
(a) Cuscuta growing on a shoe flower plant i)Brood Parasitism
(b) Mycorrhizae living on the roots higher plants. ii)Commensalism
(c) Clownfish living among the tentacles of a sea anemone. iii)Mutualism
(d) Koel laying her eggs in the crow’s nest. iv)Parasitism
The graph below shows the changes in two populations of herbivores in a grassy field. A possible reason for these changes is that
Territoriality occurs as a result of
Which one of the following is a matching pair of certain organism(s) and the kind of association between them?
The symbiotic relationship of algae and fungus is found in
Match the following pairs of interacting species to the corresponding names of interaction:
| Name of interacting species | Name of Interaction | ||
| i | Herbivore and Plants | a | Mutualism |
| ii | Cuckoo and Crow | b | Predation |
| iii | Sea anemone and Clown fish | c | Parasitism |
| iv | Fungus and Cyanobacteria (Lichen) | d | Commensalism |
Match List I with List II:
|
List I (Interacting species) |
List II (Name of Interaction) |
| A. A Leopard and a Lion in a forest/grassland | I. Competition |
| B. A Cuckoo laying egg in a Crow's nest | II. Brood parasitism |
| C. Fungi and root of a higher plant in Mycorrhizae | III. Mutualism |
| D. A cattle egret and a Cattle in a field | IV. Commensalism |
Choose the correct answer from the options given below:
