Mark the term each clue points to

Exercise and reference answers

Clues and terms

1. Clue

   Vertical distribution of species occupying different levels of an ecosystem

   Item

   Stratification

2. Clue

   Rate at which producers make organic matter during photosynthesis

   Item

   GPP

3. Clue

   Producer biomass left after respiration losses, open to heterotrophs

   Item

   NPP

4. Clue

   Mass of living material held at one trophic level at a given moment

   Item

   Standing crop

5. Clue

   Dead leaves, bark, flowers and animal remains that feed decomposition

   Item

   Detritus

6. Clue

   Dark amorphous store of nutrients that resists microbial attack

   Item

   Humus

7. Clue

   Second name for the fungi and bacteria that degrade dead matter

   Item

   Saprotrophs

8. Clue

   What many interconnected food chains together make

   Item

   Food web

9. Clue

   Position an organism holds by its source of nutrition

   Item

   Trophic level

Instructions

Read each clue and tap the term it names on the 3x3 board.

Explanation