Ecology ( biogeochemical cycle and organisms in the environment)

Odd One out

• a nitrogen

• b. Phosphorus

• c. Carbon

• d. Potassium

• e. Oxygen

Answer explanation

Nitrogen, Carbon, Oxygen are gaseous type, Phosphorus is sedimentary.

Odd one out

• a adaptation

• b. Abaptation

• c. Evolution

• d. Acclimation

Answer explanation

Adaptation, Abaptation, and Evolution are related to genetic changes over longer time scales, Acclimation is a short-term adjustment.

Odd one out

• a. Temperature

• b. Moisture

• c. Nutrients

• d. Competition

• e. Light

Answer explanation

Temperature, Moisture, Nutrients, and Light are physico-chemical limiting factors, Competition is a biotic limiting factor.

Odd one out

• a. Food chain

• b. Food web

• c. Energy pyramid

• d. Nutrient cycle

• e. Biomass

Answer explanation

Food Chain, Food Web, Energy Pyramid, and Biomass Pyramid are related to energy transfer in the ecosystem, Nutrient Cycle is about nutrient movement.

Odd one out

• a. Eutrophication

• b. Upwelling

• d. Oligotrophic

• d. Algal blooms

Answer explanation

Eutrophication, Upwelling, and Algal Blooms are related to nutrient-rich systems, Oligotrophic refers to nutrient-poor systems.

Which of the following is NOT an essential element for living organisms?

• a. Carbon

• b. Hydrogen

• c. Gold

• d. Nitrogen