Definitions

Question 1

Indicator 
Mosses
Greasewood
Tubifex
Fish,invertebrates macrophytes,periphyton 
Amphibians 
Lichens

Answer 1

Measure of condition of place

Mosses acid soil
Greasewood saline soil
Tubifex oxygen poor and stagnant water
Fish,invertebrates macrophytes,periphyton ocean
Amphibians chemicals,global warming and air pollution
Lichensair - sensitive to SO2

Question 2

Keystone

Answer 2

Removal- prey population explodes

Deceases overall diversity

Question 3

Flagship

Answer 3

Mascot eg- polar bear for climate change
Symbols
Charismatic megafauna
Arctic- juvenile harp seal- seal hunting