Symbiosis and Competition

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. 

• parasitism

• commensalism

• mutualism

Tags

NGSS.MS-LS1-4

Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 

• parasitism

• commensalism

• mutualism

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which interaction benefits both organisms?

• A flea living on a dog

• A bee pollinating a flower

• A tapeworm living inside an animal

• A mosquito biting a person

Tapeworms live in the intestines of dogs and absorb nutrients from food the dog eats. Which best describes the outcome of this relationship?

• The dog and tapeworm both become ill. 

• The dog becomes ill, and the tapeworm benefits. 

• The tapeworm and dog helpe ach other survive. 

• The tapeworm helps the dog survive. 

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

The stork uses it saw-like bill to cut up the dead animals it eats. As a result, the dead animal carcass is accessible to some bees for food and egg laying. The relationship neither harms nor benefits the stork.

• parasitism

• commensalism

• mutualism

Two male Giraffes are fighting over the last green leaf of a tree that is dying.  

• Competition

• Mutualsim

• Predation

• Commensalism

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A tick is a parasite to a horse. Which statement best describes the relationship between the tick and the horse?

• a.  The tick helps the horse get food. 

• a.  The tick harms the horse by feeding on its blood. 

• a.  The horse harms the tick by feeding on its blood. 

• The tick does not affect the horse. 

Tags

NGSS.MS-LS2-4

This type of interaction occurs when 2 organisms live closely together for survival.

• Symbiosis

• Competition

• Predation

• Cymbalosis

_______ occurs when two organisms are trying to get the same resources.

• Symbiosis

• Competition

• Predation

• Collaboration

Which of the following is an example of mutualism?

• A bird cleaning a crocodile's teeth

• A lion hunting a zebra

• A fungus infecting a tree

• A cat chasing a mouse

Tags

NGSS.MS-LS2-2