Advertisements
Advertisements
Question
Select the statement which explains best parasitism.
Options
One organism is benefited.
Both the organisms are benefited.
One organism is benefited, other is not affected.
One organism is benefited, other is affected.
Solution
One organism is benefited, other is affected.
Explanation:
Parasitism is an interaction between two species in which one species (parasite) derives benefit while the other species (host) is harmed. For example, lice (parasites) on the human body and ticks on dogs represent this interaction, where the parasites receive benefits (as they derive nourishment by feeding on the blood of humans). On the other hand, these parasites reduce host fitness and harm the human body.
APPEARS IN
RELATED QUESTIONS
Apart from being a part of the food chain, predators play other important roles. Mention any two such roles supported by examples.
Describe the mutual relationship between fig tree and wasp and comment on the phenomenon that operates in their relationship.
Define the following term:
Interspecific competition
How is mutualism different from commensalism?
Name the type of association: Crow feeding the hatchling of Koel
Define Community.
Define Absolute Mortality.
Define mutualism.
The interaction in nature, where one gets to benefit on the expense of other is _________.
Competition between species leads to ________.
Type of interspecific interaction wherein one organism is benefited and other is harmed is called ____________.
An interaction favourable to both population but no obligatory to either is ______.
A population has more young individuals compared to the older individuals. What would be the status of the population after some years?
What is commensalism?
Lianas are vascular plants rooted in the ground and maintain erectness of their stem by making use of other trees for support. They do not maintain direct relation with those trees. Discuss the type of association the lianas have with the trees.
Carnivorous animals-lions and leopards, occupy the same niche but lions predate mostly larger animals and leopards take smaller ones. This mechanism of competition is referred to as ______.
What are the special adaptations that endoparasites show?
The diagram given below shows the life cycle of a malarial parasite. Study it carefully and answer the questions that follows:
- Name the hosts in which the asexual phase and sexual phase of the life cycle takes place.
- Identify the infective stage labelled ‘D’.
- Name the structure labelled ‘A’ and ‘E’.
- Give any one symptom of malaria.
What happens to an inferior competitor if the superior competitor is removed from the environment?
