Evaluation COT

Which of the following symbiotic relationships is considered parasitic?

• Tapeworm in an intestinal tract

• Bees transporting pollen from flowers

• Pilot fish swimming under sharks

• Birds eating the insects from the back of a hippopotamus

What symbiotic relationship is present when frogs eat an insect?

• mutualism

• predation

• commensalism

• parasitism

Which of the following pair of organisms has harmful interaction?

• a snake and a rat

• butterflies and flowers

• bird's nest and a tree

• orchids and trunk of a tree

Ants and acacia trees have a mutualistic relationship. The plant provides the ants with a nest and food. The ants defend the plant from predators. Which statement below explains this relationship?

• They are part of the same ecosystem

• The acacia tree does not benefit from the ant.

• The ants harm the acacia tree

• They both benefit from living with each other.

The tree frog uses plants or trees for protection from the rain. The frog is protected from the rain and the tree is neither helped nor harmed. What form of symbiosis is represented in this relationship?

• mutualism

• parasitism

• commensalism

• predation