Ecological Levels, Factors & Symbiosis

Both species benefit

• symbiosis

• parasitism

• mutualism

• commensalism

In an ecosystem, members of the lizards are observed eating members of the insect population.  In this same ecosystem, birds are also observed using insects as a food source.  The relationship between lizards and birds would best be described as –

• predator
•  competitive
• parasitic
• mutualistic

Tags

NGSS.MS-LS2-2

The flea feeds on a mouse's blood to the mouse's detriment (or harm).  

• Predation
• Parasitism
• Commensalism
• Mutualism

 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

Tags

NGSS.MS-LS2-1

The collection of all of the biotic and abiotic factors in an area describes -

• community
• population
• ecosystem
• organism

Tags

NGSS.MS-LS2-3

A frog eats a fly. The frog and fly are demonstrating ________.

• mutualism
• competition
• predator/prey
• parasitism

One species benefits, the other is unaffected

• symbiosis

• parasitism

• mutualism

• commensalism

Ostriches and gazelles feed next to each other. They both watch for predators. Because the visual abilities of the two species are different, they can each identify threats that the other animal may not see as readily.

• symbiosis

• parasitism

• mutualism

• commensalism

Tags

NGSS.MS-LS2-2

A coyote captures, kills, and eats a rabbit. What type of symbiotic relationship is this?

• mutualism
• commensalism
• parasitism
• predation

Epiphytes are a class of plants that grow in the crooks of tree branches. They simply use the tree branches as a way to be higher—closer to the sunlight needed for photosynthesis. The trees aren’t affected by this relationship.

• symbiosis

• parasitism

• mutualism

• commensalism