A. Organisms that swim in water
B. Floating plants
C. Suspended lower plants
D. Animals associated with plants
E. Algae
Related Mcqs:
- Each human couple should produce only two children which help in:
A. Checking pollution
B. Fertility of soil
C. Stabilizing the ecosystem
D. Improving food-web - The incorporation of minerals by microbes is called:
A. Mineralization
B. Humification
C. Nutrient immobilization
D. Microbe immobilization - The two major functional components of an ecosystem are:
A. Energy flow and food chain
B. Mineral recycling and energy flow
C. Food chain and decomposers
D. Energy flow and decomposers - In a food chain the largest population is that of:
A. Producers
B. Decomposers
C. Tertiary consumers
D. Primary consumers - Which of the following terms is not a synonym literally for ecosystem?
A. Ectosome
B. Ecosphere
C. Microcosm
D. Holocene - Sulphur is returned to the soil by:
A. Producers only
B. Producers and consumers
C. Consumers and decomposers
D. All of these - Which of the following has the largest amount of energy?
A. Producers
B. Primary consumers
C. Secondary consumers
D. Disinfectants - This is an inverted pyramid:
A. Pyramid of numbers in a grassland ecosystem
B. Pyramid of energy in a pond ecosystem
C. Pyramid of biomass in a grassland ecosystem
D. Pyramid of biomass in a pond ecosystem - Synecology can be subdivided into how many branches:
A. Population ecology
B. Community ecology
C. Ecosystem ecology
D. All of the above - Opening of canopy irregular and gradual, young crop somewhat uneven-aged:
A. Uniform system
B. Group system
C. Irregular system
D. Strip system
The correct answer to the question: "Nektons are:" is "Organisms that swim in water ".