Organism Relationships

Give an example of an autotrophic organism.

• plant

• fungus

• bacteria

• algae

Which type of organisms rely on consuming other organisms for their nutrition?

• Photosynthesizers

• Producers

• Heterotrophs

• Autotrophs

Provide an example of a heterotrophic organism.

• tree

• lion

• shark

• eagle

What is the term for a close and long-term interaction between two different species?

• parasitism

• commensalism

• symbiosis

• mutualism

Describe a mutualistic symbiotic relationship.

• A mutualistic symbiotic relationship involves two different species benefiting from the association by providing each other with something they need.

• A mutualistic symbiotic relationship is characterized by one species benefiting while the other is harmed.

• A mutualistic symbiotic relationship results in harm to both species involved.

• A mutualistic symbiotic relationship involves competition between two species for resources.

In a parasitic interaction, which organism benefits while the other is harmed?

• Parasite benefits, host benefits

• Parasite benefits, host is harmed

• Mutualism

• Symbiosis

Give an example of a parasitic relationship in nature.

• Tick feeding on a mammal's blood

• Fungus growing on a rock

• Bird eating seeds from a tree

• Mosquito feeding on a plant's nectar

What type of relationship occurs when one organism benefits while the other is neither helped nor harmed?

• Commensalism

• Predation

• Parasitism

• Mutualism

Explain the concept of commensalism.

• Commensalism is a type of relationship where one organism always harms the other.

• Commensalism is a relationship where both organisms benefit equally.

• Commensalism is a relationship between two organisms where one benefits and the other is neither helped nor harmed.

• Commensalism involves one organism benefiting at the expense of the other.

Which type of organisms are known as 'self-feeders'?

• Autotrophs

• Heterotrophs

• Decomposers

• Omnivores