Skip to document
Welcome to StudocuSign in to access the best study resources
Guest user
0followers
HomeMy LibraryAsk AI
  • You don't have any recent items yet.
My Library
  • You don't have any courses yet.
  • You don't have any books yet.
  • You don't have any Studylists yet.

Worksheet

WORKSHEET
Course

BSED English (BLAW 2019, English 3)

128 Documents
Students shared 128 documents in this course
Academic year: 2021/2022
Uploaded by:
Anonymous Student
This document has been uploaded by a student, just like you, who decided to remain anonymous.
Cebu Roosevelt Memorial College

Recommended for you

Comments

Please sign in or register to post comments.

Students also viewed

Related documents

Preview text

Energy to Live: Food Chains, Food Webs, and Energy Pyramids

Every organism on Earth needs energy to live. Except for newly discovered species living in the

deepest parts of the ocean, every species on Earth gets the energy they need to live from the

sun. Food chains and food webs can both be used to show how energy moves from the sun to

different animals.

A food chain shows the path of energy through a chain of different organisms. The first link on a

food chain is a producer. Producers include plants, bacteria, and algae. Plants are an important

producer for humans. They use energy from the sun, water, and carbon dioxide in a process

called photosynthesis to create energy. The plants use some of this energy to live and grow; the

rest is stored for later use. The organism that eats the plant is called the primary consumer in

the food chain. Both herbivores and omnivores eat plants. Herbivores only eat producers such

as plants. Omnivores will eat both producers and other consumers (meat). The next link in the

food chain is the secondary consumer. Secondary consumers are

either carnivores or omnivores that eat the primary consumers. Carnivores only eat meat (other

consumers). Another carnivore or omnivore will eat the secondary consumer. These are called

tertiary consumers. There can be many links a food chain, but most food chains have a limited

number of consumers. This is because a lot of energy is lost with every link of the chain. Each

organism will use some of the energy it gets from eating, meaning that less energy is

available to the next organism along the chain. This means that there is a lot less energy

available to the tertiary consumer than the primary consumer.

This explains why there are so many more plant-eating fish than fish-eating sharks in the ocean.

Currently, there are about 19 billion chickens living on Earth. Compare this number to the 7

billion humans who eat the chickens.

The last link in the food chain is a decomposer. Decomposers include bacteria and fungi. These

organisms break down dead plants and animals. The nutrients from the dead plants and

animals are then left in the soil. The next generation of plants will use these nutrients to grow

and develop.

Food Webs

A food web is similar to a food chain, but instead of showing just one energy path, it shows

many possible energy paths. For example, an owl (secondary consumer) eats mice (primary

consumer), but it also eats rabbits (another primary consumer). Similarly, a goat (primary

consumer) is eaten by both a jackal and a lion. Instead of

showing just one set of relationships, a food web shows many different relationships between

plants and animals.

Drawing Food Chains and Food Webs

When drawing a food chain or food web it is important to remember to draw an arrow from the

plant or animal that is being eaten to the animal that eats it. The arrows show the direction

energy is moving through the food web or food chain. Also, decomposers are not usually shown

in food chains or food webs. Even though they are an important part of the ecosystem, drawing

decomposers can be

confusing because they decompose all plants and animals. This means they do not have a

specific place on a food web or food chain.

Energy to Live: Food Chains, Food Webs, and Energy Pyramids Questions

Multiple Choice Questions:

  1. Why is this passage called Energy to Live? a. It explains why organisms need energy to live. b. It explains where different organisms get their energy to live. c. It proves that all organisms get their energy to live directly from the sun through photosynthesis. d. It suggests that only some organisms need energy to live.

  2. What is the main idea of the passage? a. Every organism needs energy to live. b. Food chains are an important tool for understanding the relationships between animals. c. Food chains, food webs, and energy pyramids are used to describe the transfer of energy through different organisms. d. Producers make their own energy.

  3. Based on the information in the passage, which inference can the reader make? a. If the rabbits in a community die off, this will cause many of the foxes to starve. b. Plants use photosynthesis to create energy. c. Food chains include all of the possible predator/prey relationships in an area. d. Plants are sometimes at the top of an energy pyramid.

  4. What is the best definition for photosynthesis based on the passage? a. Creating energy from nothing. b. Moving down along the energy pyramid. c. The way bees get energy from flowers. d. Using the energy from the sun and other materials to create energy.

Matching:

  1. Match the following facts about food chains and food webs.

______ show one set of predator/prey relationship ______ show all predator/prey relationships in the ecosystem ______ shows how energy is passed through different consumers ______ Does not include producers

a. Both food chains and food webs

b. Food chains

c. Food webs

d. Wrong since both food chains

and food webs do this

True/ False Questions:

Below is a food web. Answers the true/false question about the food web below.

  1. The seal is a predator to the little fish. a. True b. False

  2. Sharks are both predators and prey. a. True b. False

  3. Little fish are both predators and prey in this food web. a. True b. False

  4. Big fish are prey to seals. a. True b. False

Food Web and Food Chain Questions

Multiple Choice Questions:

  1. What is missing from the following food chain? Sun à koala bear à dingo a. Consumer b. Predator c. Omnivore d. Producer

  2. Wombats eat grasses and other plants because they are ____. a. Predators b. Prey c. Herbivores d. Both B and C

  3. Koala bears, kangaroos, and wombats are all examples of what type of consumer? a. Omnivores b. Carnivores c. Producers d. Herbivores

  4. Eucalyptus trees and kangaroo grass are both examples of ___. a. Producers b. Consumers c. Herbivores d. Omnivores

  5. The grass, the mouse, and the dingo are all part of a food chain. Which of the following is the grass? a. Consumer b. Producer c. Omnivore d. Herbivore

  6. Dingos eat koala bears, mice, kangaroos, and wombats because they are ___. a. Omnivores b. Carnivores c. Consumers d. Both B and C

  7. What do the koala bear, the mouse, the kangaroo, and the wombat have in common? a. They are prey b. They are consumers c. They are predators d. Both A and B

  8. Where does the energy for this food web begin? a. The sun the grass b. The eucalyptus tree c. The dingo

  9. From what does the koala get most of its energy? a. The grass b. The dingo c. The sun d. The eucalyptus tree

  10. Which animal is not an herbivore? a. Koala bear b. Wombat c. Dingo d. Kangaroo

  11. Which three words best describe the dingo? a. Omnivore, carnivore, herbivore b. Omnivore, consumer, producer c. Carnivore, consumer, producer d. Carnivore, consumer, predator

  12. What three words best describe the kangaroo? a. Carnivore, omnivore, herbivore b. Producer, herbivore, prey c. Consumer, herbivore, prey d. Consumer, predator, prey

Energy Pyramid Questions:

  1. In an ecosystem, the growth and survival of organisms are dependent on the availability of the energy from the Sun. This energy is available to organisms in the ecosystem because a. producers (plants) can use and store energy from sunlight b. consumers (animals) can transfer chemical energy to plants c. all organisms in a food web can use sunlight as energy d. all organisms in a food web feed on autotrophs

  2. The diagram below represents different feeding levels in an energy pyramid.

Which of the following statements best explains why the energy pyramid is narrowest at the top?

a. The organisms at the top of the pyramid are the most efficient feeders. b. The organisms at the top of the pyramid have the largest population sizes. c. The organisms at the top of the pyramid need only a small amount of energy for their metabolism. d. The organisms at the top of the pyramid receive only a small fraction of the energy that originally enters the system.

  1. The base of an energy pyramid for this ecosystem on the right would include which of the following? a. Frog b. Grasshopper c. Snake d. Grass

  2. Base your answer to the following question on the diagram below.

Which term best describes the mosquito larvae?

a. producer

b. parasite

c. carnivore

d. consumer

  1. Base your answer on the energy pyramid below and on your knowledge of biology.

This diagram can be used to represent the a. dependency of animal survival on physical conditions in an ecosystem b. loss of energy from various groups of organisms in an ecosystem c. competition among species in an ecosystem d. mechanisms that maintain homeostasis in the plants in an ecosystem

  1. A pyramid of energy can be used to illustrate the loss of usable energy at each feeding level in a food web. In which feeding level would the smallest amount of energy be found? a. autotrophs b. primary consumers c. producers d. secondary consumers

  2. The energy for use by organisms in level A originally comes from a. producers b. the Sun c. level B d. level D

  3. Which statement about this energy pyramid is correct? a. Organisms in level D receive their energy directly from the Sun. b. Organisms in level B are carnivores. c. Organisms in level B receive their energy from level C. d. Organisms in level A are autotrophic.

  4. Which statement correctly describes organisms in this ecosystem? a. Organisms in level B obtain their energy directly from the Sun. b. Organisms in level C obtain their nutrients directly from organisms in level D. c. Organisms in level A are herbivores. d. Organisms in level D are heterotrophic.

  5. Where would carnivores most likely be located? a. A and B b. B and C c. C and D d. D and A

  6. On which level is the greatest amount of available energy found? a. A b. B c. C d. D

Was this document helpful?

Worksheet

Course: BSED English (BLAW 2019, English 3)

128 Documents
Students shared 128 documents in this course

University: Cebu Roosevelt Memorial College

Was this document helpful?
Energy to Live: Food Chains, Food Webs, and Energy Pyramids
Every organism on Earth needs energy to live. Except for newly discovered species living in the
deepest parts of the ocean, every species on Earth gets the energy they need to live from the
sun. Food chains and food webs can both be used to show how energy moves from the sun to
different animals.
A food chain shows the path of energy through a chain of different organisms. The first link on a
food chain is a producer. Producers include plants, bacteria, and algae. Plants are an important
producer for humans. They use energy from the sun, water, and carbon dioxide in a process
called photosynthesis to create energy. The plants use some of this energy to live and grow; the
rest is stored for later use. The organism that eats the plant is called the primary consumer in
the food chain. Both herbivores and omnivores eat plants. Herbivores only eat producers such
as plants. Omnivores will eat both producers and other consumers (meat). The next link in the
food chain is the secondary consumer. Secondary consumers are
either carnivores or omnivores that eat the primary consumers. Carnivores only eat meat (other
consumers). Another carnivore or omnivore will eat the secondary consumer. These are called
tertiary consumers. There can be many links a food chain, but most food chains have a limited
number of consumers. This is because a lot of energy is lost with every link of the chain. Each
organism will use some of the energy it gets from eating, meaning that less energy is
available to the next organism along the chain. This means that there is a lot less energy
available to the tertiary consumer than the primary consumer.
This explains why there are so many more plant-eating fish than fish-eating sharks in the ocean.
Currently, there are about 19 billion chickens living on Earth. Compare this number to the 7
billion humans who eat the chickens.
The last link in the food chain is a decomposer. Decomposers include bacteria and fungi. These
organisms break down dead plants and animals. The nutrients from the dead plants and
animals are then left in the soil. The next generation of plants will use these nutrients to grow
and develop.

Students also viewed

Related documents