WorksheetsLiving System
Total questions: 20
Worksheet time: 10mins
Which ecosystem has lifeforms most similar to those of the ocean?
estuary
lake
pond
swamp
How are all ecosystems similar to forest ecosystems?
All ecosystems have plenty of trees for consumers to eat.
All ecosystems provide nutrient-rich soil for the producers.
All ecosystems provide diverse populations of small animals that consumers can eat.
All ecosystems have an appropriate amount of sunlight to support the producers living there.
An ecologist is comparing two different ecosystems and creates the following list of similarities:
--aquatic
--diverse fish life
-- high salt concentration
--plentiful light at the water’s surface
Which two ecosystems was the ecologist most likely comparing?
ocean and lake
estuary and ocean
grassland and pond
Which animal would you most likely find in a deciduous forest?
bison
deer
duck
panther
Which is most similar between an ocean water ecosystem and a pond water ecosystem?
the variety of organisms
the amount of space available
the type of nutrients available
the climate and daily temperature
Plants in a forest need to obtain nutrients from the soil to survive. How do MOST of the nutrients get back in the soil once the forest plants have used them for growth?
Organic matter is recycled from dead organisms.
Commercial fertilizers are applied by humans.
Solar radiation reaches the ground surface.
Rainwater drips off of living organisms.
Bacteria are released into the Gulf of Mexico to help clean up an oil spill. What role do the bacteria serve in the marine ecosystem?
decomposers
consumers
producers
predators
Which organism is best classified as a consumer?
worm
algae
human
mushroom
Which group of organisms are consumers?
bacteria, fungi, and mushrooms
cactus, fern, and maple tree
deer, rabbit, and squirrel
moss, protist, and algae
Which best describes how decomposers help support life in an ecosystem?
Decomposers provide a habitat in the ecosystem.
Decomposers add producers to the ecosystem.
Decomposers provide energy for consumers.
Decomposers add nutrients to the soil.
When the prey population in an ecosystem increases, which will most likely happen to the predator population?
The predator population will die out.
The predator population will decrease.
The predator population will gradually increase.
The predator population will move to another ecosystem.
Which is the most important reason endangered species should be protected?
People pay a lot of money to visit zoos and see endangered animals.
Protecting endangered species removes pollution from the environment.
Endangered species are viewed as unique by the people in the community.
When any endangered species dies it affects other animals within the ecosystem.
Bacteria often live inside the body of a living host, such as a dog. Which best describes how bacteria carry out the processes necessary for survival?
Bacteria borrow cells from the host to carry out life processes.
Bacteria use their many different cells to carry out life processes.
Bacteria are made up of one cell which is responsible for carrying out all life processes.
Bacteria use their many different cells as well as cells from the host to carry out life processes.
Which is an example of a single-celled organism?
fish
tree
fungi
human
Mr. Cooper is teaching his students about cells. He gives the following description of an organism:
This organism can only be seen through a microscope. In addition, it does not depend on other cells to survive. It can independently perform all of its major functions needed to survive.
Which best describes this organism?
It is a single-celled organism.
It is a multi-celled organism.
It is a complex organism.
Why do humans require many different types of cells to survive?
Human cells are identical and work together to perform the same function.
Human cells are specialized and work together to perform the same function.
Human cells are identical and work independently to perform different functions.
Human cells are specialized and work independently to perform different functions.
Which best describes a snake?
A snake is made up of one cell that carries out one life process at a time.
A snake is made up of many cells that carry out one life process at a time.
A snake is made up of one cell that carries out many different life processes when needed.
A snake is made up of many cells that carry out many different life processes when needed.
Which system is most closely associated with the brain?
nervous
muscular
circulatory
respiratory
Which body system processes foods into a useable source of energy?
circulatory
digestive
nervous
skeletal
How does the skeletal system benefit the nervous system?
It protects the lungs.
It protects the heart.
It protects the brain and spinal cord.
It protects the esophagus and stomach.
