Science HW, Week 5-2
Due Friday, March 2nd
Name: ____________________________________________
Date: _______________
Period: _________
TEKS T7.5C: Diagram the flow of energy through living systems, including food chains, food webs, and energy pyramid
Part 1: Vocabulary
Instructions: Scientists use many different words to describe the different kinds of organisms in a food web or food
chain. Use the translations for the different prefix and suffixes to match the words with the correct definition.
prefix
autodedetricarn- (from caro)
herbheteroomnipro-
Translation
“myself”
“remove, reverse”
“dead matter”
“flesh, meat”
“herb, plant”
“different, other”
“all”
“before, forward”
Words
1. ____ Autotroph
2. ____ Heterotroph
3. ____Trophic Level
-suffix
-composer
-ducer (from ducere)
-troph
-vore (from vorare)
Translation
“to put together”
“to bring”
“food, nourishment”
“to devour, to eat”
Definitions:
a. An organism that consumes (or eats) both plant and animal matter.
b. The position of an organism in a food web or food chain.
c. An organism that consumes (or eats) dead or decomposing material
such as leaf litter or soil; for example, worms.
4. ____Omnivore
d. An organism, like bacteria or a fungus, that breaks down or takes
apart organic matter and then absorb the nutrients
5. ____ Herbivore
e. An organism that gets its energy by making its own food and not
eating other living organisms; for example, plants and algae.
6. ____ Carnivore
f.
The organisms that appear before all others in a food chain or food
web and bring all the energy into the food web or chain.
g.
An organism that consumes (or eats) mostly plant matter; for
example, deer and caterpillars.
7. ____ Producer
8. ____ Detrivore
9. ____ Decomposer
h. An organism that gets its energy by consuming (or eating) other
living organisms.
i.
An organism that consumes (or eats) mostly animal matter.
Part II: Analyzing a food web
Yellowstone National Park Food Web (Partial)
Directions: Use the food web
from Yellowstone national
park and the list of answer
choices below to classify the
different organisms in the
food web.
Answer choices:
I. Autotroph
II. Heterotroph
III. Herbivore
IV. Omnivore
V. Carnivore
VI. Producer
VII. Decomposer
1. The Grizzly bear can be classified as a(n) _______.
A) II
B) II and IV
C) VI
D) III and IV
2. The strawberry plant can be classified as a(n) ______.
A) I and VI
B) V
C) VII
D) III
3. The migratory grasshopper can be classified as a(n) ____.
A) IV
B) II
C) II and III
D) III and VII
4. The soil bacteria can be classified as a(n) ____.
A) V
B) I and VI
C) III
D) VII
5. The least chipmunk can be classified as a(n) ____.
A) III
B) II and V
C) VII
D) I and VI
6. Based on the food web shown, predict what would happen if the climate changed and the Idaho fescue (a
plant) disappeared from Yellowstone national park.
I predict_____________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________