Grade 9 unit1: Interactions of living things Lesson 1: introduction to ecology 1- The next diagram shows the different levels of organization in ecology. Fill in the spaces 2- What is meant by each of the following? Species: -----------------------------------------------------------------------------------------------Niche:----------------------------------------------------------------------------------------------------Habitat:------------------------------------------------------------------------------------------------- 3- Give an example for each of the following: 1- A land ecosystem.-------------------2- Abiotic factor in the river ecosystem.------------------- 4- The next diagram shows an ecosystem. Use it to fill in the table. Species Abiotic factors -------------- ---------------- ---------------- --------------------- --------------------------------------- ---------------- ------------------- ------------------ ----------------- ------------------ ----------------------- What is the niche of water Lilly What is the niche of snail 1 2