WorksheetsPhotosynthesis and the Food Web
Total questions: 34
Worksheet time: 17mins
Plants use ______ to make their own food.
water
sunlight
soil
air
Animals depend on ______ for energy.
sunlight
water
soil
air
Which of the following is released by plants during photosynthesis?
Oxygen
Carbon Dioxide
Nitrogen
Hydrogen
Which statement BEST describes the role of photosynthesis in an ecosystem?
A. Photosynthesis is the final product of matter and energy for all organisms.
B. Photosynthesis cycles energy among organisms, but organisms are responsible for cycling matter.
C. Photosynthesis cycles matter among organisms, but organisms are responsible for cycling energy.
D. Photosynthesis is the starting point of matter and energy for all organisms.
How does photosynthesis support the fox?
A. The fox eats photosynthetic plants to obtain food, oxygen, and water.
B. The fox obtains energy from sunlight that it uses to catch and eat the hare.
C. The fox converts energy received from sunlight into sugar, oxygen, and water.
D. The fox receives energy from eating the hare that obtained energy from eating plants.
The pictures show close-up views of a fir tree and a cactus. Both trees have adapted to their environments. The fir tree stores water in its needles so that it can survive winter, when most available water is frozen. The cactus stores water in its stem so that it can survive seasonal droughts, when little water is available. In which biomes can the fir tree and the cactus most likely be found?
The fir tree can be found in the rain forest biome, and the cactus can be found in the taiga biome.
The fir tree can be found in the tundra biome, and the cactus can be found in the rain forest biome.
The fir tree can be found in the coniferous forest biome, and the cactus can be found in the desert biome.
The fir tree can be found in the grassland biome, and the cactus can be found in the coniferous forest biome.
Pick two reasons that a plant from a rain forest biome would not survive in a desert biome. Pick up to 5 answers.
There is not enough water in a desert biome.
There is not enough sunlight in a desert biome.
There are not enough nutrients in the soil in a desert biome.
The soil contains too much organic matter in a desert biome.
The available growing space is too crowded in a desert biome.
What happens to light energy from the Sun when it reaches the surface of Earth?
The light energy is multiplied when it reaches the plants on Earth.
The light energy is destroyed when plants are eaten by herbivores.
The light energy is transformed to chemical energy by photosynthesis.
The light energy is converted to potential energy by cellular respiration.
The two most important factors that determine what type of biome develops are the climate and
continent
weather
the soil type
the latitude
All plants and animals need to obtain energy from their environment in order to grow. How is this process different for plants than it is for animals?
Plants obtain their energy from sunlight, while animals obtain their energy by eating plants or other animals.
Plants need several multiple sources of energy, while animals only need one source of energy.
Plants convert the energy they obtain to sugar, while animals convert the energy they obtain to salt.
Plants obtain their energy through their roots, while animals obtain their energy through their mouths.
What is the ultimate source for the energy in most food?
air
water
sunlight
heat
Which land biome has more species than all the other biomes combined?
tropical rainforest
desert
temperate forest
savannah
What biome is characterized by very low temperatures, high winds, and permafrost?
desert
temperate forest
tundra
tropical dry forest
Biotic factors include which of the following?
rocks, soil, air
plants, animals, fungi
water, air, soil
bacteria, viruses, water
The diagram below shows a food web. The arrow between the ferns and the insects represents the:
A. fact that the ferns and the insects required the same nutrients.
B. energy in the ferns that is being transferred to the insects.
C. the movement of the ferns into the insects ecosystem.
D. nutrients in the insects flowing to the ferns.
Kim is creating a model to show how energy moves through an ecosystem. Which of the following could she use to best describe the role that plants play in this process?
Plants remove oxygen from other organisms.
Plants create carbon dioxide for other organisms.
Plants use sunlight to create food for other organisms.
Plants increase the water temperature for other organisms.
A diagram of a marine ecosystem is shown. What is the primary source of energy for this ecosystem and why?
the Sun because it supplies the light energy that producers use to create food
seals because they eat both the producers and consumers in the ecosystem
seaweed because all of the consumers in the ecosystem get their energy from eating it
the ocean because it receives the most energy that is lost from the organisms as heat
How do algae contribute to the flow of energy in this food chain?
Algae receive their energy from every animal in the food chain because algae eat dead organisms.
Algae provide energy for all of the animals in the food chain because all of the animals eat only algae.
Algae use the Sun's energy to make their own food, and they pass that energy to the shrimp when they are eaten.
Algae use the water's energy to make their own food, and they pass that energy to the shrimp when they are eaten.
The table shows four things that live in the same environment and what they eat. Plant or Animal | What It Eats ---|--- Owl (animal) | Small mammals, birds, and insects Ladybug (animal) | Leafy plants Finch (animal) | Small seeds and insects Grass (plant) | Makes its own food Which of the following shows the correct flow of energy for the Sun and the living things listed in the table?
A. Ladybug → Grass → Owl → Finch → Sun
B. Sun → Owl → Finch → Ladybug → Grass
C. Grass → Finch → Ladybug → Sun → Owl
D. Sun → Grass → Ladybug → Finch → Owl
A tropical rain forest is able to meet the needs of many plants, animals, insects, and birds because temperatures are
warm all year, and there is a lot of rainfall.
warm all year, and there is little rainfall.
cold all year, and there is a lot of rainfall.
cold all year, and there is little rainfall.
Cacti are plants that have long roots, waxy leaves, and swollen trunks that are used to retrieve and store water. A population of cacti would most likely be found in a
cold and wet environment.
dark and humid environment.
bright and humid environment.
hot and dry environment.
Which table correctly pairs the organisms with their primary source of energy?
Organism: Producers - Energy Source: Decaying Matter, Consumers - The Sun, Decomposers - Producers
Organism: Producers - Energy Source: Decaying Matter, Consumers - Producers, Decomposers - The Sun
Organism: Producers - Energy Source: The Sun, Consumers - Decaying Matter, Decomposers - Producers
Organism: Producers - Energy Source: The Sun, Consumers - Producers, Decomposers - Decaying Matter
The diagram below shows a food chain found in an ocean ecosystem. What is the main role of the algae in this food chain?
to provide the energy other plants need for photosynthesis
to convert sunlight into usable energy for other organisms
to provide animals with shelter from sunlight
to recycle nutrients on the ocean floor
How do most consumers obtain energy?
They obtain energy indirectly from plants.
They eat minerals from under the ground.
They eat other animals that make their own energy.
They obtain energy from gaseous molecules in the air.
What is the role of a decomposer in a food chain?
to provide nutrients to consumers
to increase the size of producers
to destroy matter and nutrients
to recycle matter and nutrients
Which choice best describes a producer?
an organism that can make its own food for energy
an organism that obtains its energy from plants
an organism that breaks down dead organisms
an organism that feeds on other organisms
What would most likely happen if decomposers were removed from an ecosystem?
Less organic matter would be returned to the soil.
More organic matter would be returned to the soil.
Producers would be unable to complete photosynthesis.
Consumers would be unable to obtain energy from producers.
Which best describes a herbivore?
an organism that makes its own food for energy
an organism that obtains energy from producers
an organism that obtains energy from consumers
an organism that obtains energy from decomposers
Which biome has a permanently frozen layer of soil called permafrost?
savanna
grassland
tundra
taiga
What role does the Pronghorn antelope play in the ecosystem of an East Texas grassland?
Primary consumer
Secondary consumer
Decomposer
Producer
What keeps energy flowing through this ecosystem?
Together, producers and decomposers supply the entire ecosystem with energy, allowing the existing set of interactions to continue.
Consumers, such as the coyote, supply the entire ecosystem with energy, allowing the existing set of interactions to continue.
The Sun supplies the entire ecosystem with energy, allowing the existing set of interactions to continue.
Decomposers, such as a fungus, supply the entire ecosystem with energy, allowing the existing set of interactions to continue.
What would most likely occur if a food chain were deprived of sunlight?
The plants would rely on animals for energy.
The animals would rely on plants for energy.
The food chain would thrive because of increased energy flow.
The food chain would fail to thrive because of decreased energy flow.
How do decomposers contribute to the growth of plants?
A. They draw fertilizers from the soil so plants can use them.
B. They use sunlight to produce food that plants use for energy.
C. They break down organic compounds into simple nutrients that plants can use.
D. They build complex molecules that plants and primary consumers use for energy.
What is the most likely result if all producers are removed from an ecosystem?
Consumers die, and the food web collapses.
Consumers survive by getting energy from other consumers.
Consumers survive by creating food through photosynthesis.
Consumers die, but the remaining organisms in the food web survive.
