A key stone species is...

• the top carnivore.
• has the largest population.
• has the most specialized niche.
• determines numbers and types of other species.

Tags

NGSS.MS-LS2-4

A human & a Tape Worm: The tape worm gets a place to live in the intestines of the human and food from the human. The human loses weight and nutrients from the tape worm.

• Mutualism
• Commensalism
• Parasitism

Bird & Tree: A bird builds a nest in a hole in the trunk of the tree. It is protected from the rain and predators. The tree is not harmed or helped by the bird.

• Mutualism
• Commensalism
• Parasitism

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

• commensalism
• mutualism
• parasitism
• predation

Tags

NGSS.MS-LS1-4

NGSS.MS-LS2-2

Starfish are probably the most important predator in the shallow ecosystem because they eat basically anything that they can come across. Their feeding activities control the whole ecosystem. This is an example of the starfish ___.

• habitat
• biotic factors
• tolerance level
• niche

Tags

NGSS.MS-LS2-2

Tree kangaroos live in the upper branches of trees in the rainforests of Queensland, as well as on the island of New Guinea. This is an example of the tree kangaroos ___.

• niche
• habitat
• community
• population

What is the name of an animal that is hunted and eaten by other animals?

• producer
• prey
• predator
• decomposer

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

___ states that two species cannot exist together if they compete for the same resources. One will either die out or migrate, or they will adapt to separate resources.

• Hardy-Weinberg Principle
• Limiting Nutrient Principle
• Competitive Exclusion Principle
• Tolerance Principle

Tags

NGSS.MS-LS2-1

The concept that herbivores can affect both the size and distribution of plants is known as 

• predation
• commensalism
• herbivory
• keystone species

Tags

NGSS.MS-LS2-4

a relationship between two species in which both species compete for limited resources such that both species are negatively affected by the relationship

• Symbiosis

• interspecific competition

• species richness

• species-area effect