Biology

The physical and chemical factors which affect the life of organisms in an environment are described as?

A. biotic B. edaphic C. abiotic D. physiographic Correct Answer: Option C C. abiotic

6 years ago

Which of these factors are common to both aquatic and terrestrial habitats?

A. Light, rainfall and turbidity B. Light, temperature and tide C. Light, rainfall and temperature D. Rainfall, turbidity and salinity…

6 years ago

Which of the following statements about feeding relationships is correct?

A. In a food web on land, grasshopper feeds on praying mantis and on predator bugs B. In a food…

6 years ago

Which of these diseases cannot be spread by an insect?

A. Cholera B. Malaria C. Trypanosomiasis D. Measles Correct Answer: Option D D. Measles

6 years ago

Organisms that feed essentially on plants within any ecosystem may be referred to as?

A. carnivores B. herbivores C. saprophytes D. omnivores Correct Answer: Option B B. herbivores

6 years ago

The group of several populations that interact and share a habitat, form?

A. a species B. a community C. an ecotype D. a tribe Correct Answer: Option B B. a community

6 years ago

Which of the following components of an ecosystem does not contribute to the biomass of the system?

A. Producers B. Consumers C. Micro-organisms D. Habitat Correct Answer: Option D D. Habitat

6 years ago

The first step in carrying out ecological studies in a terrestrial habitat is?

A. quadrat sampling B. mapping the area C. collection of organisms D. measuring abiotic factors Correct Answer: Option B B.…

6 years ago

Siphons and gills are structures in aquatic organisms used for?

A. gaseous exchange B. buoyancy C. excretion D. movement Correct Answer: Option A A. gaseous exchange

6 years ago

Which of the following organisms feeds both autotrophically and heterotrophically?

A. Hydra B. Paramecium C. Mucor D. Euglena Correct Answer: Option D D. Euglena

6 years ago