Ecology
Tested in 3 real MPSC questions across 2 years (2014–2023). See it in context on the interactive Concept Graph →
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20. काही प्रजाती नष्ट झाल्या तर पर्यावरणावर गंभीर परिणाम करतात त्यांना _______ म्हणतात. Some species if eliminated seriously affect the ecosystem. These are called _______.
A keystone species is a species that holds together an ecosystem; if removed, the ecosystem undergoes drastic changes or collapses, much like a keystone in an arch.
परपोषी जीवामधील, मुख्यतः सूक्ष्मजीव व बुरशी मृत पेशीद्रव्यातील क्लिष्ट संयुगे फोडून त्याचे सोप्या घटकात रूपांतर करतात जे इतर जीवांना उपयुक्त ठरतात त्या परपोषीजीवांना ________ म्हणतात. / Heterotrophic organisms, chiefly bacteria and fungi that breakdown the complex compounds of dead protoplasm and release simple usable substances for other organisms are :
Heterotrophic organisms like bacteria and fungi that break down dead organic matter into simpler substances are known as decomposers or saprophytes.