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2. The stable ecosystem that develops due to succession _____.
(1 point)
is called a niche
is always a forest
is called a climax community
never changes
Figure 3-6
3. Look at the graph in Figure 3-6. Approximately how many hours of sunlight should these plants receive each day in order to make them grow at their optimum level?
(1 point)
4
12
16
20
4. Water temperature and light are two ____________________ factors that affect the tolerance range of organisms in a lake.
(1 point)
5. Tropical rain forest and ____________________ biomes are both characterized by a thin layer of nutrient-poor topsoil that can support only shallow-rooted plants.
(1 point)
6. Fires, natural disasters, and human intervention are possible causes of ____________________.

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*YOU DONT HAVE TO ANSWER ALL JUST PLEASE HELP!
1. Describe five different relationships that a penguin has with other species.
2.Describe a penguins feeding a role and its feeding(trophic) level
3. .Describe a penguins biome.
4.Describe a penguins ecosystem
5. Describe a penguins ecological niche