Name ________________________________ Test Review Due ________________________Class Per. _________
Test Review Unit 5.1
Part 1. Levels of Organization
1. The Guadalupe bass, bluebonnets, wild turkeys, bats, white-tailed deer, and the map turtle make up what level
of organization of the Texas Hill Country? ______________community______________________________
2. All of the Brazilian free-tailed bats that live under the Congress Avenue Bridge make up a
_______________population_________ of that species.
3. The water, rocks, streams, soil, and rainfall, plus the herons, raccoons, deer, opossums, toads and frogs make up
the ___________ecosystem__________ of Central Texas wetlands.
4. Label each part of the diagram above to show the levels of organization. Use the words community, organism,
ecosystem, and population.
popul
organism
ation
population
Organization
community
Community
ecosystem
ecosystem
Name ________________________________ Test Review Due ________________________Class Per. _________
5. Explain how the bear in this picture depends on the stream. Include in your explanation your understanding of
the interactions between biotic and abiotic factors. _________________The bear depends on the stream for
food and water. These abiotic factors are necessary to support the life of all biotic factors in an ecosystem.
___________________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
6. What is the source of energy in this ecosystem? _________Sun___________________________
7. Why is the bear fishing in the stream?
a. internal stimuli or hunger makes him hunt for food
b. external stimuli or hunger makes him hunt for food
8. What occurs in this environment that is abiotic but contains biotic material? ___Soil_________________
Name ________________________________ Test Review Due ________________________Class Per. _________
Use this diagram for the questions below.
1. Name an organism in the diagram. ____________Prairie dog or owl or snake or bison or cactus or
grass_________________
2. Give the definition of population and name one present in the diagram. ___All the members of a single species
in one area. Any of the groups
3. What is a community? Give a definition and then name a community shown in the diagram. All of the
populations of different species in a particular area (all of the biotic factors) and their interactions with each
other. Prarie or Grasslands community
4. List the biotic and abiotic factors that are part of this ecosystem. __Biotic: All living things (Animals: Owls, Prairie
dogs, Snake, Bison) (Plants: cactus, Grass) Abiotic: Non-living ( Soil, Clouds, Rocks, Oxygen,
Sunlight)____________________________________________________________________________________
5. Use the graph below to answer this question: The graph below shows the population of whooping cranes that
winter on the Texas coast. What is the population of whooping cranes in 1940? _____20____________ What
happens to the population as time passes? Increases_________________
Number of Whooping Cranes
80
60
40
Number of Whooping
Cranes
20
0
1940
1950
1960
1970
1980
Name ________________________________ Test Review Due ________________________Class Per. _________
Part 2. Biotic and Abiotic Factors
1. Sunlight, water, and oxygen are necessary to support _____life__________.
2. Name four abiotic factors that affect living things
a. ______sun_______________________
b. __________temperature___________________
c. ____________________oxygen_________
d. _________water____________________
3. Name the characteristics for life.
a. ____universal genetic code (DNA)_________________________
b. ________Grow and Develop_____________________
c. ______Reproduce_______________________
d. _________Maintain homeostatsis____________________
4. The __Sun____________ is the source of energy for all food webs. It is a ______Abiotic_______________ factor.
5. Label the following biotic or abiotic by writing the word in the blank provided.
a. ____A_________ sunlight
h. ____B_________ owl
b. _____A________ temperature
i.
_____B________ dragonfly
c. ______B_______ grasses
j.
_____B________ mosquitoes
d. ______B_______ catfish
k. _____B________ woodpeckers
e. ______A_______ water
l.
f.
m. _____A________ humidity,
______A_______ precipitation
g. ______A_______ soil
_____B________ earthworms
n. _____A________ temperature
Test Tips!
What to study – write these down on your test review!
1. Know vocab – the levels of organization and be able to identify them in a
picture
2. Know the order of the levels in a pyramid format
3. Know what abiotic factors are and how organisms rely on them for survival
4. Know what the difference between abiotic and biotic (hint: Bio = LIFE) – so
anything that is living is a BIOTIC factor!!!!