Science Flashcards
describe the flow of matter and energy in decomposers?
The matter and energy both come from decaying organisms the decomeposers uses some matter for energy and the rest of the matter is retured to the soil
Which statement best summarizes the sources of energy in the relationship between algae and
coral?
Plants and algae use the sunlight to produce sugars which are stored in the plant/algae.
When the plant/algae is eaten, the stored sugars are broken down and energy is
released.
What is an ecosystem?
An ecosystem is all of the living organisms and their abiotic factors that are together in
an area.
What is an abiotic factor?
Abiotic factors are nonliving factors such as air, water, sunlight, temperature.
What are examples of an abiotic factor?
air, water, sunlight, temperature.
What is a biotic factor?
Biotic factors are the living factors in an ecosystem.
What are examples of biotic factors?
Trees, fish, people, grass
What is the role of decomposers in a food web?
To break down dead organisms and return matter/nutrients to the environment
How do producers and consumers differ from each other?
Producers use sunlight to create their own food/energy and consumers cannot, they get energy
by eating other organisms
What is the primary role of decomposers in a food web?
To return matter and nutrients to the environment
Different grasses are observed in a microhabitat in a schoolyard. Why is grass an essential part of a healthy ecosystem?
Grasses are a producer and are the base of many food chains and food webs
What is a consumer? Be able to recognize consumers when given examples.
An organism that eats other organisms for food and energy. Example: Cow, Tiger
What is an energy pyramid?
Illustrates the flow of energy from one consumer to the next
How much energy is passed from one level of the energy pyramid to the next?
10% is passed from one level to the next
How do producers get energy?
They use sunlight to produce sugars
How do consumers get energy?
From the food that they eat
Describe the different levels of organization.
An organism
a single living thing.
Describe the different levels of organization.
Population-
A population is a group of the same organisms living together in an area.
Describe the different levels of organization.
Community
A community is all of the populations living together in an area.
Describe the different levels of organization.
Ecosystem-
An ecosystem is all of the living organisms and their abiotic factors that are together in an area.
Why is the ability to move important to animals?
To get food and water to survive
