NEW
Font size
WorksheetsEcosystem Review
Total questions: 52
Worksheet time: 33mins
What is a food chain?
The flow of energy from one thing to another
The way animals eat each other
The way the sun makes everything
How the plants grow
*Remember Humans are on the top of all food chains because we do not get hunted.
What do plants need to make their own food?
Sun, Water, and Animals
Sun, Coke, and Soil
Sun, Water, and Soil
Nothing at all
An example of a predator:
shark
mouse
rabbit
An example of prey:
lion
mouse
shark
What is a decomposer?
Food webs show you everything an animal eats. Food chains show you one thing.
What is an organism?
something not alive
a living thing
What is a prey?
The animal that is being eaten
The animal that eats other animals
The lion
What is the lettuce?
Producer
Consumer
What is an organism?
something not alive
a living thing
Why are green plants called producers?
they eat their own food
they produce knowledge
they make their own food
they eat other animals
Why are animals considered consumers?
They get their food from other plants and animals
They make their own food
What is a predator?
An animal that is eaten by other animals
An animal that does not do anything.
An animal that eats other animals
What is a prey?
The animal that is being eaten
The animal that eats other animals
The lion
What is the lettuce?
Producer
Consumer
What is the rabbit?
Producer
Consumer
What is the lion?
Predator
Prey
What is the coyote?
Predator
Prey
Why are green plants called producers?
they eat their own food
they produce knowledge
they make their own food
they eat other animals
What is a common feature between an estuary and an ocean ecosystem?
Both are freshwater ecosystems.
Both are deep water ecosystems.
Both contain different plants and animals at different depths.
Both contain a deep bottom zone where sunlight does not reach.
A student listed a few characteristics of a desert ecosystem.
Which characteristic did she list incorrectly?
heavy rainfall
nutrient-poor soil
little vegetation
low annual temperatures
What will be most affected if the decomposers in an ecosystem are removed?
the spread of disease
the availability of water
the quality of soil
the distribution of organisms
Which would most likely cause a decrease in a population of herbivores?
an increase in the number of producers
a decrease in the types of decomposers
an increase in the types of plants
an increase in the number of carnivores
What would most likely happen if all of the decomposers in an ecosystem were removed?
The animals in the ecosystem would die because of the spread of disease.
The plants in the ecosystem would eventually die because of a lack of nutrients in the soil.
The plants in the ecosystem would begin to die out because of a decrease in available water.
The animals in the ecosystem would eat other types of food because of a decrease in producers.
A food chain in an ecosystem includes blackberry bushes, deer, and wolves.
• Deer eat blackberries.
• Wolves eat deer.
If the population of wolves decreases, how will this affect the population of blackberry bushes?
It will decrease because there will be fewer deer.
It will increase because there will be fewer deer.
It will decrease because there will be more deer.
It will increase because there will be more deer.
The moon jellyfish is a saltwater marine organism.
Which aquatic ecosystem commonly provides the marine habitat the moon jellyfish requires to survive?
river
pond
ocean
lake
Which is an example of multi-celled organisms?
amoeba
bacteria
crickets
Fungi and bacteria are both single-celled organisms. What do they most likely have in common?
Both fungi and bacteria are large organisms.
Both fungi and bacteria can carry out all life functions in their one cell.
Both fungi and bacteria need sunlight and nutrients from the soil to be able to grow.
Both fungi and bacteria are highly specialized to do only one job so they must work with other cells to obtain food.
How do bacteria control their life processes?
Bacteria control their life processes within multi-cells.
Bacteria control their life processes within a single cell.
Bacteria work with other cells to control all their life processes.
When a thin slice from an onion is viewed through a microscope, lots of little box-like shapes are seen. These shapes are MOST likely
atoms
dust
cells
bubbles
A single-cell organism can do everything a cell from a multicellular organism can do EXCEPT
specialize.
reproduce
use energy
make protein
Which organism is single-celled?
bacteria
tree
dog
Which best explains why both cats and humans are multicellular organisms?
They get energy from many food sources.
They get energy from a single food source.
They need only one cell to meet their basic needs.
They need many cells working together to meet their basic needs.
Which characteristic do single-celled organisms and multicellular organisms have in common?
Both have cells with specialized functions for each life process.
Both perform all life processes within one cell.
Both have a way to get rid of waste materials.
Both are able to make food from sunlight.
Fish are multi-celled organisms with specialized cells. What would most likely happen if their specialized cells did not function properly?
The fish would decrease in size.
The fish would increase in size.
The fish would die.
What is the main purpose of single-celled organisms?
to survive
to reproduce
to produce food for other organisms
to work with other single-celled organisms
Ty'tan and Jordan read about different kinds of organisms. They read about an organism with a respiratory system, digestive system, skeletal system, and muscular system. Which can Sue and Allie most likely conclude about this organism?
The organism is unicellular.
This organism is microscopic.
The organism is multicellular.
The organism does not have any cells.
Which is an example of a single-celled organism?
fish
tree
fungi
human
Which best explains how a single-celled organism can survive without other cells?
They do not need any substance from outside of the cell.
They are able to perform all necessary functions within one cell.
They do not need to perform more than one function to survive.
