Strand 4: Life Science
Concept 4: Adaptations
PO #: 2: Describe how an organism can maintain a stable internal environment while living in a constantly
changing external environment.
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SC08 : Test Bank
Knowledge & Skills
ASSESSMENT TYPES (Grouped by school and teacher)
Multiple Choice/Matching/True-False
Short Answer/Fill-in/Essay
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Strand 4: Life Science
Concept 4: Adaptations
PO #: 2: Describe how an organism can maintain a stable internal environment while living in a constantly
changing external environment.
Multiple Choice/Matching/True-False
Rhodes – Little
S.I.E. Vocabulary - Write the letter for the term that correctly matches its definition.
A. diurnal
B. ectotherm
C. endotherm
D. external environment
E. internal environment
F. nocturnal
G. stable internal environment
1. all the factors and conditions outside an organism that influence its life
2. body systems of an organism stay constant even when outside environment changes
3. an organism that creates its own body heat inside to control its temperature
4. all the conditions and factors inside an organism that influence its life
5. an organism that sleeps during the day and is active at night
6. an organism whose body temperature is determined by the external environment
7. an organism that is active during the day and sleeps at night
Shepherd – Code
1. Which of the following would help an ectotherm stay warm during cold weather?
A. being nocturnal
B. having thick fur
C. estivation
D. sunning themselves on a hot rock
Fremont – McGee/Franklin
1. Desert animals often hunt at night to stay out of the heat of the day. This shows...
a. a predator-prey relationship.
b. how behaviors help an animal survive.
c. how relationships make life easier.
d. physical traits are passed from one generation to another.
2. Both the arctic fox and the snowshoe hare are examples of mammals with a coat that changes color during the
year. In winter their coat is white, and in summer it turns to various shades of brown. Which type adaptation
do these animals display?
a. protective coloration
c. chemical defense
b. defensive physical structures (horns,
d. a fashionable seasonal wardrobe
fangs, stingers, etc.)
3. Some desert animals, like the hedge hog, fox, & jack rabbit have unusually large ears that act as radiators. As
blood circulates through capillaries near the surface of the skin it is cooled by the breeze. This physical
adaptation helps the animal to ...
a. attract a mate.
c. retain water.
b. regulate its body temperature.
d. be nocturnal.
Strand 4: Life Science
Concept 4: Adaptations
PO #: 2: Describe how an organism can maintain a stable internal environment while living in a constantly
changing external environment.
4. Reptiles often sit on a rock in the morning sunshine but find shade or go into their burrow in the afternoons.
These behaviors demonstrate a scientific concept known as ...
a. pollination.
b. hydration.
c. homeostasis.
d. being nocturnal.
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Strand 4: Life Science
Concept 4: Adaptations
PO #: 2: Describe how an organism can maintain a stable internal environment while living in a constantly
changing external environment.
Short Answer/Fill-in/Essay
Rhodes – Little
Stable Internal Environment: For each example, identify the organism’s adaptation that helps keep a S.I.E.
1. coyotes hunt at night avoiding the heat of the day
2. a lizard basks in the sun to warm itself and buries itself in the sand to cool down
3. a rattlesnake moves around during the day in order to better keep itself warm
4. shivering causes the body to heat up when cold
Stable Internal Environment: Use complete sentences for each response.
5. Provide four different examples of how plants and/or animals survive in a desert by using structural and/or
behavioral adaptations to maintain a stable internal environment.
(HINT: Show adaptations that allow organisms to deal with extreme heat or a lack of water.)
6. Explain how each adaptation below helps to maintian a stable internal environment.
a. ectotherm
b. endotherm
c. nocturnal
d. diurnal
7. Explain how having a stable internal environment increases the chance for an organism’s survival.
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Strand 4: Life Science
Concept 4: Adaptations
PO #: 2: Describe how an organism can maintain a stable internal environment while living in a constantly
changing external environment.
Performance/Task/Project
TOP
_________________________________________________________________________________________
Strand 4: Life Science
Concept 4: Adaptations
PO #: 2: Describe how an organism can maintain a stable internal environment while living in a constantly
changing external environment.
Other
TOP
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