Population Interactions and Community Ecology

Groups of different populations that live in a given area and interact are called a(n)...

• Community

• Colony

• Population

• Ecosystem

Tags

NGSS.MS-LS2-2

What is the term for each step in the transfer of energy and matter within a biological community?

• energy path
• food web
• trophic level
• food pyramid

Tags

NGSS.MS-LS2-3

The energy at each trophic level in the pryamid of energy decreases by a factor of ____.

• 10
• 1
• 100
• 2

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Food webs are models that show

• one sequence of producers and consumers.

• complex networks of feeding relationships.

• stored energy in food chains

• only primary consumers in an ecosystem

Tags

NGSS.MS-LS2-3

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

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

Organisms that make their own food by using sunlight or chemical energy to convert simple inorganic molecules into complex, energy-rich organic molecules like glucose are called

• consumer

• heterotroph

• producer

• carnivore

Tags

NGSS.MS-LS1-6

An organism that must obtain their nutrients by eating other organisms is called a

• autotroph

• consumer

• producer

• decomposer

What is a limiting factor?

• anything that tends to be in small supply needed for life

• anything

• things that there is a lot of

• what was the question again?

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Animal that gets its energy and nutrition from eating plants.

• Parasite

• Herbivore

• Carnivore

• Ominvore