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Consider the following statements:

  1. The term ecology encompasses both the study of species interactions and abiotic influences.

  2. Population dynamics, community structure, and ecosystem energy flow are subfields of ecology.

  3. Ecology focuses solely on wildlife and forest conservation.

Which of the statements given above is/are correct?

A1 and 2 only

B2 and 3 only

C1 and 3 only

DAll of the above

Answer:

A. 1 and 2 only

Read Explanation:

  • Correct Answer: Option A (1 and 2 only)

  • The term ecology encompasses both the study of species interactions and abiotic influences.

  • This statement is correct. Ecology is the scientific study of the relationships between living organisms and their environment, including both biotic (living) interactions between species and abiotic (non-living) factors such as temperature, soil composition, water availability, etc.

  • Population dynamics, community structure, and ecosystem energy flow are subfields of ecology.

  • This statement is also correct. Ecology is divided into several hierarchical levels of study:

  • Population dynamics examines how populations of a single species change over time

  • Community structure studies how different species interact within a defined area

  • Ecosystem energy flow analyzes how energy moves through different trophic levels in an ecosystem

  • All of these are legitimate and important subfields within ecology.

  • Ecology focuses solely on wildlife and forest conservation.

  • This statement is incorrect. While ecology does inform conservation efforts, it is not limited solely to wildlife and forest conservation. Ecology studies all types of ecosystems (marine, freshwater, terrestrial) and all organisms (not just wildlife), including microorganisms, plants, fungi, and animals. Additionally, ecology includes theoretical, applied, and experimental approaches beyond just conservation.


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ഉന്നത വിദ്യാഭ്യാസം, ആണവ-പ്രതിരോധ മേഖല, ബഹിരാകാശ - ആന്തരിക ഘടന എന്നിവയുടെ വികാസത്തിന് കാരണമായ പ്രധാന ഘടകം ?
ഭൗമോപരിതലത്തിലെ വസ്തുക്കളുടെ അക്ഷാംശ-രേഖാംശ സ്ഥാനം, ഉയരം എന്നിവ മനസ്സിലാക്കാൻ സഹായിക്കുന്ന സംവിധാനം ?

Which of the following pollutants are matched correctly with their effects?

  1. Sulphur oxides – Destruction of chlorophyll

  2. Nitrogen oxides – Formation of ozone in photochemical smog

  3. Methane – Causes lung cancer

  4. Carbon monoxide – Respiratory blockage due to haemoglobin binding