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प्रश्न
While living in and on the host species, the animal parasite has evolved certain adaptations. Describe these adaptations with examples.
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उत्तर
In accordance with their lifestyles, parasites evolved special adaptations such as the loss of unnecessary sense organs, presence of adhesive organs or suckers to cling on to the host, loss of digestive system and high reproductive capacity. The life cycles of parasites are often complex, involving one or two intermediate hosts or vectors to facilitate the parasitisation of their primary host.
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संबंधित प्रश्न
Distinguish between the following: Parasitism and Mutualism.
Define population.
What is population interaction? Explain the interactions in Mutualism and Competition.
Predation and parasitism are which type of interactions?
Identify the interspecific interaction in which species A is harmed and species B is unaffected.
Identify the interspecific interaction depicted in the following figure.
In spite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?
Which of the following is a partial root parasite?
What is the interaction between two species called?
What is commensalism?
What is mycorrhiza?
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 | ______ |
Write the observations made at the end of Connell's field, experiment on barnacles on the rocky sea coasts of Scotland.
The interaction between cattle egret and the buffalo is ______.
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 ______.
A bird laying its egg in the nest of another bird is the type of ______.
"Abingdon tortoise in Galapagos islands became extinct within a decade on introduction of goats in the island." Explain giving reason.
Many copepods live on the body surface of marine fish. This relationship is an example of ______.
Parasitism is an interaction between two organisms in which ______.
Statement I - Calotropis growing in abandoned fields is never consumed by cattle and goats.
Statement II - Calotropis produces highly poisonous cardiac glycosides.
In light of above statements, select the most appropriate answer from the option given below.
