Name _________________________________
Chapter 5 Study Guide
What is a population? (page 127)
Populations can _______ and _______ only where their needs are met.
If a population’s needs are not met, the population will get _________________ . Some members might
_______________________. Maybe none will survive.
What is a temperate rainforest? (page 128)
Temperate rainforests have trees such as _______ and _______ .
These trees grow well in the _______ , _______ climate.
Which biome has the most species? (page 130)
________________________________________________________________
Elk are able to survive in the taiga biome. What adaptation helps them survive in this ecosystem?
(page 133)
________________________________________________________________
In the atmosphere, what is the source of most of the oxygen? (page 152)
________________________________________________________________
What is a symbiotic relationship? (page 142)
A symbiotic relationship is a __________________ relationship between species.
One species is always helped and the other might be _________________, _________________, or not
affected at all.
Examples: Relationship between algae and coral- Algae helps the corals make a hard outside coating. A
fungus and bacteria work together to form lichen.
Desert plants have a unique root system that helps them to survive in this dry ecosystem. Describe
their root system. (page 134)
They have a _________________ root system that is close to the surface. This allows the plants to
absorb water quickly from the soil’s surface.
If you are a creature in the deep sea biome, what do you need to adapt to? (page 139)
________________________________________________________________
What characteristic of a plant will give it the greatest chance of survival? (page 140)
________________________________________________________________
Where is the greatest amount of energy in an energy pyramid? (page 146-147)
________________________________________________________________
How do carnivores get energy? (page 144)
________________________________________________________________
How do producers get energy? (page 144)
________________________________________________________________
How do omnivores get energy? (page 144)
________________________________________________________________
How do herbivores get energy? (page 144)
________________________________________________________________
What does a decomposer do in an ecosystem? (page 144 and 150)
They break down __________________ and __________________. By breaking down these remains,
they make __________________ __________________ that are used by plants.
What are three nonliving parts of an ecosystem? Also, be able to explain how these nonliving parts
will impact different kinds of organisms and the population size of these organisms. (page 127)
________________________________________________________________
How do wetlands help the environment? (page 137)
The plants, soils, and microorganisms of wetlands act as filters that:
_____________________________________
_____________________________________
_____________________________________
Be able to look at a food web and identify 2 food chains. You also need to be able to label each
organism as a producer or consumer (herbivore, carnivore, or omnivore). Finally, be prepared to
describe how the 2 food chains are similar.
Name _________________________________
Chapter 5 Study Guide ANSWER KEY
What is a population?
Populations can live and grow only where their needs are met. If a population’s needs are not met, the
population will get smaller. Some members might move away. Maybe none will survive.
What is a temperate rainforest?
Temperate rainforests have trees such as maple and spruce. These trees grow well in the wet, cool
climate.
Which biome has the most species?
Tropical rainforest
Elk are able to survive in the taiga biome. What adaptation helps them survive in this ecosystem?
Thick fur
In the atmosphere, what is the source of most of the oxygen?
Plankton in the oceans
What is a symbiotic relationship?
A symbiotic relationship is a long term relationship between species. One species is always helped and
the other might be helped, harmed, or not affected at all.
Example: Relationship between algae and coral- Algae helps the corals make a hard outside coating. A
fungus and bacteria work together to form lichen.
Desert plants have a unique root system that helps them to survive in this dry ecosystem. Describe their
root system.
They have a large root system that is close to the surface. This allows the plants to absorb water quickly
from the soil’s surface.
If you are a creature in the deep sea biome, what do you need to adapt to?
High pressure
What characteristic of a plant will give it the greatest chance of survival?
A plant that has a large root system
Where is the greatest amount of energy in an energy pyramid?
At the bottom
How do carnivores get energy?
By eating animals
How do producers get energy?
They eat the food they make
How do omnivores get energy?
They eat plants and animals
How do herbivores get energy?
They eat plants
What does a decomposer do in an ecosystem?
They break down waste and dead matter. By breaking down these remains, they make nitrogen
compounds that are used by plants.
What are three nonliving parts of an ecosystem? Also, be able to explain how these nonliving parts will
impact different kinds of organisms and the population size of these organisms.
Air, water, soil, temperature, sunlight
How do wetlands help the environment?
The plants, soils, and microorganisms of wetlands act as filters, cleaning water, and protecting inland
areas from ocean waves.
Be able to look at a food web and identify 2 food chains. You also need to be able to label each
organism as a producer or consumer (herbivore, carnivore, or omnivore). Finally, be prepared to
describe how the 2 food chains are similar.