Organisms and the Environment

When longleaf pine trees are said to "dominate" an ecosystem, what does that mean?

• The longleaf pine trees are in competition with the shortleaf pine trees

• The longleaf pine trees dominate that ecosystem

• The longleaf pine trees are almost extinct in that ecosystem

After a volcanic eruption, lava covers the land. What is the order that plants grow to repopulate the area?

• Lichens → Shrubs → Grasses → Trees

• Lichens → tree → shrubs→Grasses

• Grasses → Lichens → Shrubs → Trees

• Lichens → Grasses → Shrubs → Trees

Tags

NGSS.MS-LS2-3

What are examples of pioneer species in a primary succession?

• Bushes and Shrubs

• Oak trees

• Mossess and Lichens 

• A rose Bush

Tags

NGSS.MS-LS2-1

What is the first species you will see after a primary succession? (in picture)

• lichens

• grasses

• small plants

Tags

NGSS.MS-LS2-3

What is ecological succession?

• A slow change in an environment

• A change that takes days in an environment

• No change

• Abiotic change

Tags

NGSS.MS-LS2-4

A pioneer species is...

• large organism

• the first organisms to adapt to a new environment 

• best organism 

• Abiotic organisms 

Tags

NGSS.MS-LS2-4

Which is the correct order in primary succession?

• Rocks, Lichens & Mosses, Bushes & Shrubs, Trees

• Lichens & Mosses, Rocks, Trees, Bushes & Shrubs 

• Trees, Bushes and Shrubs, Lichens & Mosses, Lichens & Mosses

• Rocks, Grass, Trees, Bushes & Shrubs

First species to arrive in an area

• invasive species

• abiotic components

• pioneer species

• parasites

First species occuring in areas of primary succession are mosses and

• grasses

• wildflowers

• trees

• lichens

environment

• all of the conditions surrounding an organism

• the struggle of organisms for the same limited resources

• available supplies of food, water, sunlight and space in an environment

Tags

NGSS.MS-LS2-1