Ecology Review
1 Name the levels of organization within the environment from most specific to most general (omit “species”)
Answer Individual, population, community, ecosystem, biome, biosphere
2 Define community
Answer Collections of populations living together in the same area
3 Define biosphere
Answer The layer of living things and the space they inhabit that circle the globe
4 To which trophic level would an oak tree belong?
Answer The first trophic level
5 Name a tertiary consumer in this food web.
Answer Fox, owl, snake
6 Use 2 vocab words to describe the plants in an ecosystem
Answer Producer, autotroph
7 What is the term used to describe the growing concentration of a poisonous compound up a food chain?
Answer Biomagnification
8 A plant contains 5000 units of energy. A grasshopper eats the plant, a frog eats the grasshopper, a snake eats the frog, and a hawk eats the snake. How much of the plant’s energy was transferred to the hawk?
Answer 0.5 units
9 Why does only 10% of an organism’s energy pass to the next trophic level?
Answer Poop, respiration, the organism uses the energy
10 The number of individuals in a given area is called:
Answer Population density
10 Our classroom is 100 m2 What is the population density of our classroom?
Answer
11 Global warming is a density ____ factor Disease is a density ____ factor
Answer Independent Dependent
12 What kind of relationship? A soybean plant and nitrogen fixing bacteria
Answer Mutualism
13 What kind of relationship? Cheetah and a gazelle
Answer Predation
14 What kind of relationship? Two trees growing next to each other in a forest
Answer Competition
15 The role an organism plays and the resources it uses is described as a…
Answer Niche
16 Draw a logistic growth curve
Answer
17 What is the maximum number of individuals an ecosystem can sustain?
Answer Carrying capacity
18 A volcano erupts and lava flows over a piece of land. What would happen over the next several hundred years in that area?
Answer Primary succession
19 List 2 things that could cause secondary succession to begin in an area
Answer Forest fire, over grazing, avalanche, landslide, ash volcano, natural disaster
Other Information Predator Prey Ozone & Topics discussed in the 3 sections of the book Survivorship curves Age Structure Graphs See Objective Sheet