Ecological Niche and Competition Quiz

What is the role of an ecological niche in an ecosystem?

• It determines the color of the species.

• It describes the functional position and role of an organism.

• It defines the lifespan of an organism.

• It specifies the diet of an organism.

Which of the following is a response to competition between two species sharing an identical niche?

• Mutualism

• Parasitism

• Competitive exclusion

• Symbiosis

What does resource partitioning involve?

• One species going extinct

• Both species altering their use of the habitat

• One species dominating the other

• Both species merging into one

Which of the following is NOT a component of an ecological niche?

• Habitat

• Light and temperature

• Color of the organism

• Interactions with other species

What is the result of competitive exclusion?

• Both species thrive equally

• One species uses resources more efficiently, driving the other to extinction

• Both species merge into one

• Both species leave the habitat

What is the fundamental niche of a species?

• The entire set of conditions under which an organism can survive and reproduce.

• The actual habitat occupied by the organism in the presence of other species.

• The conditions used by an organism after including all interactions with other species.

• The specific area where an organism is found.

Which type of organism cannot tolerate the presence of oxygen?

• Obligate aerobe

• Facultative anaerobe

• Obligate anaerobe

• Heterotroph

What is autotrophic nutrition?

• Obtaining organic compounds from other organisms via feeding.

• Synthesising organic compounds from simple inorganic molecules.

• Releasing enzymes to digest organic material externally.

• Consuming food and breaking down organic material internally.

Which process involves the use of energy from sunlight to synthesise food?

• Chemosynthesis

• Photosynthesis

• Holozoic nutrition

• Saprotrophic nutrition

What is the role of saprotrophic nutrition?

• Consuming food and breaking down organic material internally.

• Synthesising organic compounds from CO2.

• Releasing enzymes to digest organic material externally.

• Obtaining organic compounds from other organisms via feeding.