1
Question
Loss of unnecessary sense organs, presence of adhesive organs and loss of digestive system are adaptations evolved in__________in accordance with their lifestyles.
Loss of unnecessary sense organs, presence of adhesive organs and loss of digestive system are adaptations evolved in__________in accordance with their lifestyles.
Open in App
Solution
The correct option is D parasites
Parasitism is a type of population interaction between two living species in which one organism is benefited at the expense of the other (+/- interaction). The organism that is benefitted is called the parasite, while the one that is harmed is called the host.
Parasites have evolved several special adaptations to successfully and efficiently parasitise the host.
The following are some such adaptations:
Loss of unnecessary sense organs - Sense organs are necessary for quick and efficient response to the environmental stimuli in free-living organisms. Since endoparasites live inside the host’s body where the environment is more or less uniform, the sense organs are highly reduced and sometimes entirely absent.
Presence of adhesive organs or suckers to cling on to the host - For a firm grip on or inside the host’s body, some special organs of adhesion are necessary.
Loss of digestive system - Since parasites consume digested or semi-digested food present in the host, alimentary canal and digestive glands are partially or wholly lost.
The adaptations mentioned above are not seen in predators, commensals and prey species.
Hence, option d is the correct answer.
Parasitism is a type of population interaction between two living species in which one organism is benefited at the expense of the other (+/- interaction). The organism that is benefitted is called the parasite, while the one that is harmed is called the host.
Parasites have evolved several special adaptations to successfully and efficiently parasitise the host.
The following are some such adaptations:
Loss of unnecessary sense organs - Sense organs are necessary for quick and efficient response to the environmental stimuli in free-living organisms. Since endoparasites live inside the host’s body where the environment is more or less uniform, the sense organs are highly reduced and sometimes entirely absent.
Presence of adhesive organs or suckers to cling on to the host - For a firm grip on or inside the host’s body, some special organs of adhesion are necessary.
Loss of digestive system - Since parasites consume digested or semi-digested food present in the host, alimentary canal and digestive glands are partially or wholly lost.
The adaptations mentioned above are not seen in predators, commensals and prey species.
Hence, option d is the correct answer.
Suggest Corrections
2
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
