Symbiotic

A relationship between two organisms in which both organisms benefit.

• commensalism

• mutualism

• parasitism

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

• commensalism

• competition

• niche

Barnacles create home sites by attaching themselves to whales.  This neither harms nor benefits the whales.  What type of symbiotic  relationship is this?

• mutualism

• commensalism

• parasitism

Yucca flowers are pollinated by yucca moths.  The moths lay their eggs in the flowers where the larvae hatch and eat some of the developing seeds.  Both species benefit.  What type of symbiotic relationship is this?

• mutualism

• commensalism

• parasitism

Tags

NGSS.MS-LS2-2

What does the term "symbiosis" mean?

• A relationship where one organism eats another.

• A relationship where both organisms are harmed.

• A close and long-term biological interaction between two different biological organisms.

• A relationship where one organism benefits and the other dies.

Two different organisms living together and benefitting from each other are known as …………….

• Saprophytic

• Heterotrophs

• Parasitic

• Symbionts

A remora is a fish that has an adhesive disk on the back of its head that it uses to attach itself to a large shark. When food floats away from the shark’s mouth as it feeds, the remora collects the scraps. Drawings of a shark with a remora attached and a remora’s adhesive disk are shown.

The relationship between the remora and the shark is an example of —

• predation

• parasitism

• commensalism

• compeition

Tags

NGSS.MS-LS2-1

What is the primary difference between mutualism and parasitism?

• In mutualism, only one organism benefits, while in parasitism, both organisms benefit.

• In mutualism, both organisms benefit, while in parasitism, only one organism benefits at the expense of the other.

• In mutualism, both organisms are harmed, while in parasitism, only one organism is harmed.

• There is no significant difference; both terms describe the same relationship.

Ostriches and gazelles eat together. They both watch for predators and danger. Since they see things differently, they each can identify threats the other animal may not see. Both species are benefited.

• mutualism

• commensalism

• parasitism

Tags

NGSS.MS-LS2-2

Clown fish and sea anemone is an example of what symbiosis relationship?

• Mutualism

• Parasitism

• Commensalism

• Prey--> Predator

Tags

NGSS.MS-LS2-2