Which of the following components of an ecosystem does not contribute to the biomass of the system?
Producers
Consumers
Microorganisms
Habitat
Correct answer is D
No explanation has been provided for this answer.
The first step in carrying out ecological studies in a terrestrial habitat is
quadrat sampling
mapping the area
collecting organisms
measuring abiotic factors
Correct answer is B
No explanation has been provided for this answer.
Siphons and gills are structures in aquatic organisms used for
gaseous exchange
buoyancy
excretion
movement
Correct answer is A
No explanation has been provided for this answer.
Which of the following organisms feeds both autotrophically and heterotrophically?
Hydra
Paramecium
Mucor
Euglena
Correct answer is D
No explanation has been provided for this answer.
The examples of autotrophic organisms include the following except
Euglena
Chlamydomonas
Hydra
Spirogyra
Correct answer is C
No explanation has been provided for this answer.