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Life Science Review “Blizzard Bag”

Standard 5.1
Describe the role of producers in the transfer of energy entering ecosystems as sunlight to chemical energy through photosynthesis.

1.  The table below tells the greatest possible number of hours of sunlight and moonlight for a certain city on the 15th day of each month in 1994. Use this table to help you answer the following question.

During which of the days listed could the most photosynthesis have taken place in the city’s parks? Explain your answer.

2.  The sun is the source of energy. Which of the following shows the correct flow of energy in a food chain?


3.  Producers are organisms that can make their own food from abiotic substances (that is, things not made by other organisms, non-living things). Which of the following types of organisms are producers?

  1. Moles
  2. Moths
  3. Mosses
  4. Mushrooms

4.  Lichens are made up of an algae and a fungus growing together. An algae is a plant, but a fungus is not. Lichens commonly grow on the surfaces of rocks and trees, and can be found in deserts as well as Artic regions. Which of the following describes the movement of energy and resources of a lichen that is growing on a rock?

  1. The algae uses water from the fungus and energy from the sun to produce food for itself and the fungus.
  2. The algae uses minerals from the rock and food from the fungus to produce water for itself and the fungus.
  3. The fungus receives water from the algae and minerals from the rock to produce food for itself and the algae
  4. The algae passes water and minerals from the rock to the fungus, and the fungus uses energy from the sun to produce food.

5.  Plants use the process of photosynthesis to make their own food. What is the source of energy for photosynthesis?

  1. Water
  2. Oxygen
  3. Sunlight
  4. Carbon dioxide

Standard 5.2

Explain how almost all kinds of animals’ food can be traced back to plants.

6.  The diagram below shows a food web for an Arctic ecosystem.

How do polar bears and foxes receive their energy from photosynthesis? Explain your answer.

7.  People do not eat grass, but grasses are still important to people. Relating to the food chain, why are grasses important to people?

  1. People eat organisms that eat grass
  2. Grass surfaces are safer than concrete
  3. People use grass surfaces for recreation
  4. Grass fields can’t hide dangerous animals

8.  Which type of organism is always at the beginning of a food chain?

  1. A decomposer
  2. A carnivore
  3. A herbivore
  4. A producer

Standard 5.3

Trace the organization of simple food chains and webs.

9.  A food chain is a way to trace energy from one living this to another. For example, seeds are eaten by mice, and mice are eaten by snakes. The diagram below shows a food web for a simple lake community. A food web combines multiple food chains.

Plants are important in a food web, they are the base. Who receives their food directly from the plants in this food web? Record your answer in your answer document.

10.  Use the food web from problem 9 above to answer the following question. Which of the following shows a food chain from the previous diagram?

11.  The diagram below shows some of the roles of organisms in a community.

Which of the following correctly describes a role shared by a rabbit and a wolf?

  1. They are both consumers
  2. Neither of them is a herbivore
  3. They are both omnivores
  4. There is no role shared by both a rabbit and a wolf

12.  Which of the following is an example of a predator-prey relationship?

  1. A frog eating a dragonfly
  2. A crow feeding on road kill
  3. A tapeworm living in a cow
  4. A cuckoo laying an egg in another bird’s nest

13.  A food chain is made up of grain, plants, mice, snakes, and hawks. Which of the following diagrams correctly represents the energy available at each level of the food chain?

Standard 5.4

Summarize that organisms can only survive in ecosystems in which their needs are met. The world has different types of ecosystems with different types of organisms.

14.  Which of these characteristics would help an animal the most if it lived in an arctic ecosystem?

  1. Thick fur
  2. Long tail
  3. Sharp teeth
  4. Bright colors

15.  Many plants that live in a desert ecosystem have very waxy leaves. The was on their leaves help the plants…

  1. Conserve water
  2. Collect sunlight
  3. Fight off predators
  4. Take in more carbon dioxide

16.  The green mamba is a poisonous snake with a brilliant green color. In the wild, the green mamba blends into its surroundings and it is seldom seen by its prey. Which of the following is most likely to be the green mamba’s natural environment?

  1. Sandy desert
  2. Tropical forest
  3. Dry grassland
  4. Snowy mountain

17.  In which type of ecosystem are you most likely to find snakes, snails, flowers and fish?

  1. Pond
  2. Dry cave in a desert
  3. Deep ocean
  4. Canopy of forest

18.  Which is the best way to describe the ecosystem for animals that live in Antarctica?

  1. Hot and dry
  2. Cold and wet
  3. Cold and dry
  4. Warm and moist

19.  Which characteristic is most important for animals that live in the desert?

  1. Knowing where to store food
  2. Having the ability to lay eggs
  3. Not needing much water
  4. Being able to travel long distances


Standard 5.5

Support how an organism’s patterns of behavior are related to the nature of that organism’s ecosystem, including the kinds and numbers of other organisms present, the availability of food and resources, and the changing physical characteristics of the ecosystem.

20.  Look at the following pond ecosystem.


Imagine that pollution caused all the plants in this food chain to die. In your answer document explain how this would affect the population of largest fish, and why.

21.  Which of these organisms would suffer the most if a pond dried up?

  1. Grass
  2. Frogs
  3. Eagles
  4. Raccoons

22.  Which way do beavers change their ecosystems to survive?

  1. They are able to swim under water
  2. Their fur protects them from cold temperature
  3. They chew down trees to build dams
  4. They use their tails to communicate with one another

Standard 5.6

Analyze how all organisms cause changes in their environment.

23.  An extremely cold winter kills most of the snails in several northern lakes. Some people think the water birds will not have enough snails to eat. One person suggests that a closely related European snail could be introduced into these lakes. Identify a possible hazard with this idea- something that is harmful. Then explain why.

24.  Which of the following human activities would be most likely to bring haram to wildlife?

  1. Planting new forests to provide shelter for animals
  2. Providing unlimited sources of food and water to all animals
  3. Limiting road construction and traffic in some animal habitats
  4. Forbidding campfires in all forest preserves and wildlife sanctuaries

25.  In some parts of Earth, people have allowed livestock to overgraze grasslands. Which of the following effects does overgrazing have on grasslands?

  1. It brings more wind and rain to the land
  2. It eliminates plants that hold soil and water in place
  3. It rids the land of insects that would otherwise eat the plants
  4. It clears the weeds out and allows better pasture land to form