Font size
WorksheetsLife Science Review
Total questions: 20
Worksheet time: 20mins
Because of their sensitivity to environmental conditions, _________________ are closely monitored. If their populations decline, it is a sign that something is going wrong in the environment.
threatened species
endangered species
extinct species
indicator species
_____________ refers to all the different kinds of living organisms within a given area.
Biodiversity
Biology
Biome
Ecology
An organism that gains its energy from consuming producers and consumers is a(n) _________.
Producer
Consumer
Decomposer
Omnivore
Herbivores only gain their energy by consuming animals.
True
False
What is this diagram know as?
Food Web
Energy Pyramid
Biomass Chart
Biome
An organism that gains its energy from consuming producers is what level consumer?
Producer
Primary Consumer
Secondary Consumer
Tertiary Consumer
What level consumer is the hawk?
Primary
Secondary
Tertiary
Quaternary
Why is the sun so important to life?
It allows animals to see and play.
It provides the original source of energy it most ecosystems.
It gives off heat that causes things to energize.
Life doesn't need the sun.
As a rule, about _____% of energy makes it to the next trophic level in any given energy pyramid.
10
20
40
80
A(n) _________ is a unit of energy in the form of heat (joules).
carbohydrate
sugar cube
calorie
kilowatt
Which organism has the most energy stored in their cells?
Grass and Wildflowers
Mouse
Snake
Hawk
In the food web pictured, which organism is sometimes a secondary consumer and sometimes a tertiary consumer?
Mouse
Rabbitt
Snake
Hawk
Which of the following is a reason why not all the energy at one trophic level is passed to the next level?
Because larger animals don't require as much energy as smaller animals.
Big predators hibernate.
Consumers burn/use 90% of the energy.
Algae --> Shrimp --> Snapper --> Shark. There are 25 calories available to the shrimp. How many of those calories will make it to the sharks?
250
25
2.5
0.25
Which organisms should have the largest populations?
sharks
mackerel
herring
small crustaceans
plankton
What are the products of photosynthesis?
Oxygen and Hydrogen
Oxygen and ATP
Oxygen and Glucose
Oxygen and Carbon Dioxide
What are the products of Cellular Respiration?
Oxygen and Glucose
Oxygen, Water, ATP (energy)
Carbon Dioxide, Water
Carbon Dioxide, Water, ATP (energy)
What would happen if the gazelle population did not rebound (go back up)?
The lion population would stay high.
The lion population would not rebound (go back up).
The lion population would be out of control.
The lion population would not be affected.
Which of the following is an abiotic factor in the environment? Choose all that apply.
Sun
Water
Plants
Weather
A park is home to a large number of robins, squirrels, and rabbits. The robins and squirrels live in the park’s trees. The robins feed on earthworms and insects that live on the ground. The squirrels eat the acorns produced by the park’s oak trees. The rabbits hide in the bushes and feed on the grass. Which factor would directly limit the number of robins and squirrels that could live in this park?
number of acorns
number of robins
number of squirrels
number of trees
