Download 8TH GRADE INTEGRATED SCIENCE

8TH GRADE INTEGRATED SCIENCE
UNIT: Bioenergy Unit
NAME________________________
PERIOD______
INTERACTIONS AND RELATIONSLHIPS AMONG LIVING THINGS
(THIS ASSIGMENT MUST BE SUBMITTED TO YOUR TEACHER BEFORE YOU CAN TAKE MAKE-UP QUIZ)
Standard II: Students will understand that energy from sunlight is changed
to chemical energy in plants, transfers between living organisms, and that
changing the environment may alter the amount of energy provided to living
organisms.
Objective 2: Generalize the dependent relationships between organisms.
Lesson Objective: I can model relationships where one organism gains,
loses or stays the same in the following relationships: producer/consumer,
predator/prey, mutualism, parasitism
Vocabulary: predator, prey, predation, consumer, producer, competition,
mutualism parasitism, host, parasite, commensalism, symbiosis
Part I: Background on Relationships Among Living Things
Predation
Producers/Consumers
Producers are autotrophs (make
own food) and consumers. are
heterotrophs that eat produces or
other consumers
. Symbiosis
Symbiosis is a close relationships between two organisms from different
species that live nearby or on each other. There are three symbiotic
relationships: mutualism, commensalism, and parasitism
Mutualism
Example of Mutualism
Mutualism is the relationship
between two different organisms in
which both organisms benefit from
the association. Hummingbird gets
nectar and flower gets pollinated.
Example of Commensalism
Predation is the relationship
between two different organisms in
which one organism (predator)
hunts and kills the other organism
(prey) for food. A lion will hunt and
kill zebra for food.
Competition
Competition is the interaction
among organisms for resources,
such as food, living space, or
mating. Carnivores like the lions
and hyenas compete for the same
(zebra) food and in the same
territory
Parasitism
Parasitism is the relationship
between two different organisms in
which one benefits from the
relationship (parasite) and the other
(host) is harmed. A flea (parasite)
bites the dog (host) and gets food.
Hummingbird and Flower
Commensalism
Commensalism is the relationship
between two different organisms
where one organism benefits and
the other neither benefits nor is
harmed. Cattle egrets eat the
insects stirred up by the moving
livestock eating the vegetation.
.
Example of Parasitism
Page 2 Interactions and Relationships Among Living Things
Part II: YouTube Video
Watch the YouTube Video “Interactions of Living Things In An
Ecosystem” by following the directions:
 Google “YouTube” and click on the YouTube link.
 In Search Box, type ”Interactions of Living Things In an
Ecosystem.”
 Click on the link “Interactions of Living Things In An Ecosystem”
by mrfox218.
 Watch the video and fill in the blanks using the Word Bank. You
may use the words more than once.
Word Bank:
prey
parasitism
resources
competition
symbiosis
benefit
symbiotic
mutualism
predator
food
commensalism
space
predator/prey
dominance
unaffected
dominant
1. There are three different types of relationships between organisms:
_____________________ , _____________________ interactions,
and ______________________.relationships.
2. _______________ is any relationship between two different
species that live closely together.
3. There are three different types of symbiotic relationships:
_______________________, _____________________, and
_______________________.
4. The symbiotic relationship where both species benefit is called
________________________. Both organisms get something out
of it.
5. Example of mutualism is the bees and flowers. Bees
______________ by getting food from the flower and the flowers
_________________ from the bees helping the flowers reproduce
using the pollen.
6. The definition of ____________________ is the symbiotic
relationship between organisms where one benefits and the other is
________________.
7. Example of commensalism s the shark and the remora. The
remora ______________ by getting a free ride and food. The
shark really is unaffected by the remora.
8. __________________ is the symbiotic relationship in which one
organism benefits and the other is harmed.
9. Example of ____________________ is zombie fungus and ants.
In this relationship the zombie fungus _________________ by
getting inside the ants where it reproduces, kills the an, and uses it
for food.
10. ______________________ occurs when two or more organisms
seek the same ___________________ at the same time
11. Some of the resources include _________________ and living
________________.
12. Example of competition is two tigers who want to living in the same
living _______________ to get the same _______________. The
animals will fight it out for _________________. The
_________________ animal gets the territory.
13. A __________________ is an organism that captures and eats
another organism.
14. A _______________ is an organism that is captured and eaten by
another organism.
15. An example of predator-prey is a gazelle running away from a
cheetah. The cheetah is the _______________ because it is
giving chase. The gazelle is the ____________.
Page 3 Interactions and Relationships Among Living Things
Part III: Understanding the Vocabulary
10. ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
Use the clues below to find the vocabulary words. Write one letter per
blank.
Vocabulary Words: predator, prey, predation, consumer, producer,
11, ___ ___ ___ ___ __ ___ ___ ___
12. ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
competition, mutualism parasitism, host, parasite, commensalism, symbiosis
Part IV: Identifying the Interactions
Clues:
1. Relationship between 2 different organisms that live closely together.
2. Interaction between organisms for resources.
3. Organism that is hunted and killed for food.
4. Symbiotic relationship between 2 species where both benefit.
5. Organism that makes its own food.
6. Process where one organism hunts and kills another for food.
7. Organism that is harmed by a parasite.
8. Organism that hunts and kills other organisms for food.
9. Organism that eats producers or other organisms to get energy
10. Symbiotic relationship between organisms where one organism benefits
and the other is harmed
11. Organism that lives on or in a host and harms the host.
12. Symbiotic relationship between organisms where one organism benefits
and the other organism is unaffected.
1. ___ ___ ___ ___ ___ ___ ___ ___ ___
Identify the interactions below by writing the name of the interaction on
the blank line.
1.________________________
Shark and Remora Fish
3.________________________
2.________________________
Dandelions and Grass
4.________________________
2. ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
3. ___ ___ ___ ___
4, ___ ___ ___ ___ ___ ___ ___ ___ ___
Cat and Mouse
5. ___ ___ ___ ___ ___ ___ ___ ___
5.________________________
Cactus and Pygmie Owl
6.________________________
6. ___ ___ ___ ___ ___ ___ ___ ___ ___
7. ___ ___ ___ ___
8. ___ ___ ___ ___ ___ ___ ___ ___
9. ___ ___ ___ ___ ___ ___ ___ ___
Human and Mosquito
Nile Crocodile and Egyptian Plover Bird
Page 4 Interactions and Relationships Among Living Things
7.________________________
8.________________________
Part V: Test Your Knowledge
Sketch an example of each type of interaction (predation, competition,
producers/consumers, mutualism, commensalism, and parasitism. Give
a reason that you sketch is an example of that interaction
Whale and Barnacles
1.
9.________________________
Lady Bug and Aphid
11._______________________
3.
4.
5.
6.
10._______________________
Clown Fish and Sea Anemone
12._______________________
Mistletoe and Birch Tree
Fish and Water Plant
2.
Deer and Grass
Lion, Hyenas, Eagles, Vultures
13._______________________
1.
14._______________________
Gazelle males