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Name:_____________________________________
Class Period:___________
Review for 7th Science 2nd Semester Exam 14-15
Answer the questions.
1) What would be the likely effects of a hurricane on a marsh ecosystem?
LOSS OF PLANT LIFE FROM SALTWATER BROUGHT IN BY STORM SURGE
2) In which ways do Tornados create changes in ecosystems
HIGH WINDS DAMAGE AREA OF IMPORTANT PLANT LIFE
3) What are some of the possible effects of lightning in a thunderstorm?
START FOREST FIRES
4) What are the possible positive effects a forest fire can have on an ecosystem?
CLEARS UNDERBRUSH TO ALLOW NEW PLANTS TO GROW
List: How each Catastrophic event forms
5) Drought –LACK OF RAINFALL FOR A LONG PERIOD OF TIME
6) Wild Fire –LIGHTNING,BURN PILES,CARELESSNESS OF
PEOPLE,FIREWORKS,CIGARETTES
7) Hurricane – HIGH AND LOW PRESSURE AREAS MEET;WATER TEMPERATURE GIVES
ENERGY
8) Earthquake –VOLCANIC ERUPTIONS AND MOVEMENT OF TECTONIC PLATES
9) Volcano –PRESSURE FROM GASSES WITHIN THE MAGMA BUILDS UP AND ERUPTS
THROUGH THE EARTHS CRUST
10) Tsunami – UNDERWATER VOLCANIC ERUPTIONS, UNDERWATER
LANDSLIDES,UNDERWATER EARTHQUAKES,OR METEORITE IMPACT
11) Tornado –COMBINATION OF HOT AIR RISING AND COLD AIR SINKINNG, CREATING
A ROTATION;FROM THUNDERSTORMS OR HURRICANES
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12) Flood –INTENSE OR LONG-TERM PRECIPITATION FROM THUNDERSTORMS,
HURRICANE STORM SURGES, OR MELTING SNOW
Answer the questions.
13) What type of land formation would you expect to find where the river deposits
sediments as it reaches the Gulf?
_________DELTA______________________________________________________
14) Subsidence, or the sinking of the ground because of weakened underground rock
layers, can be caused by humans what?
_________EXCESSIVELY PUMPING WATER FROM AQUIFERS___________________
15) It is reasonable to predict that a region that does not receive much rain,
compared to other ecoregions, would have more or less soil erosion?
_________LESS SOIL EROSION____________________________________
16) What is the source of the distinct shapes and features of sand dunes in a desert?
_________DIRECTION OF PREVAILING WINDS______________________________
17) Pollutants from a factory that enter the water in a watershed will have a negative
effect on what parts of the ecosystem?
___________LOCAL POND LIFE____________________________________
18) What process is responsible for creating sand bars?
__________WAVE ACTION & CURRENTS_____________________________
19) How are Canyons formed?
_____________RIVERS CARRYING SEDIMENTS THAT ERODE LAND_________
20) Rapid growth of algae in a pond is often the result of what?
_____________EXCESS NUTRIENTS FROM FERTILIZER RUNOFF_________
21) Which ecoregion is most vulnerable to wind erosion from hurricanes originating in
the Gulf of Mexico?
__________GULF PRAIRIES AND MARSHES__________________
22) What is a possible effect of severe beach erosion?
__________SAND BARS WILL FORM OFFSHORE_____________________
23) What protects living organisms on Earth from the harmful effects of solar wind?
___________MAGNETOSPHERE___________________________________
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24) How does the distance of the Earth from the Sun effect the Earth’s ability to
support life?
THE TEMPERATURE WOULD BE TOO COLD IF WE WERE FURTHER AWAY
25) What accommodations have been designed to protect astronauts from
micrometeoroids hitting their spacesuits?
___MULTILAYERED SPACE SUITS_______________________________
26) What helps astronauts move from one area to another inside of a spaceship?
___SPECIAL HANDLES_________________________________________
27) What determines whether or not a planet supports life?
___THE PRESENCE OF AN OZONE LAYER OR WATER________________
28) Life on Earth depends on energy from _SUN (SOLAR)______________
29) Astronaut beds have straps attached to provide a safe sleeping environment.
What condition of space do the straps accommodate?
____MICROGRAVITY ENVIRONMENT_____________________________
30) Why do Astronauts need to exercise while in space?
____TO PREVENT MUSCLES & BONES FROM BEING WEAKENED__________
31) What is the most important factor that determines Earth’s temperature?
_____PROXIMITY TO THE SUN___________________________________
32) Why do Space stations require an oxygen system?
_____SPACE IS AIRLESS______________________________
33) What shields the Earth from ultraviolet radiation?
______OZONE LAYER___________________________________________
34) What is Ecological Succession?
____A CHANGE IN TYPES AND NUMBERS OF SPECIES PRESENT IN A COMMUNITY
OVER TIME SUCH AS AFTER A DISTURBANCE
35) List the stages in the processes of ecological succession
WEEDS GROW FIRST AND THEN LARGER SPECIES OF BUSHES, SHRUBS AND TREES
36) What is a pioneer species?
_____FIRST SPECIES TO APPEAR IN SUCCESSION_________________
37) What quality is the necessary for a sustainable ecosystem?
______GREAT VAIETY OF LIVING THINGS__________________________
38) After a wildfire, what is the first thing that will grow again?
______WEEDS_______________________________________________________
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39) Is the rate at which species produce offspring effected by ecological succession?
_____NO____________________________________________________________
40) What type of habitat is an organism that stores large quantities of water internally
most likely to live in?
_____ONE THAT GETS LITTLE TO NO PRECIPITATION (DESERT)_________
41) Be able to use a dichotomous key to identify an organism.
42) What environmental condition will most likely lead to the adaptations that allow a
species of fish to not only survive outside of the water, but to actually travel from one
water source to another? ___FREQUENT DROUGHTS___________________
43) Which internal structure is an adaptation that provided organisms with the
function to perform gas exchange on land?__LUNGS__________________________
44) Why are Archeabacteria unique? ____THEY CAN LIVE IN EXTREME CONDITIONS
45) Correctly list the levels of classification in order.
__KINGDOM,PHYLUM,CLASS,ORDER,FAMILY,GENUS,SPECIES___________________
46) What is the difference between behavioral and structural adaptations:
__BEHAVIORAL DETERMINES HIBERNATION,ETC BUT STRUCTURAL CHANGES THE
LOOK OR MAKE-UP OF THE PHYSICAL FEATURES_____________
47) How does the adaptation of camouflage protect against predators?
____BODY COLOR MATCHES HABITAT AND MAKES IT HARDER TO SEE______
48) Define Eukaryote: __A CELL THAT HAS A TRUE NUCLEUS______________
49) Define Muscular System: ____RESPONSIBLE FOR THE MOVEMENT OF THE BODY
AND INTERNAL ORGANS_______________________________________
50) Define Endocrine System: ____PRODUCES HORMONES THAT AFFECT OTHER
PARTS OF THE BODY____________________________________
51) Define Nervous System: ____RESPONSIBLE FOR RAPIDLY COMMUNICATING
INFORMATION INSIDE THE BODY USING ELECTRICAL IMPULSES__________
52) Define Skeletal System: ____PROVIDES STRUCTURAL SUPPORT FOR THE BODY
AND A PLACE FOR MUSCLES TO ATTACH________________________
53) Define Integumentary System: ____SKIN-PRTECTS BODY FROM EXTERNAL
ENVIRONMENT______________________________________
54) Define Respiratory System: _____EXCHANGE GASES, MOSTLY CARBON DIOXIDE
AND OXYGEN, BETWEEN THE BODY AND THE ATMOSPHERE____________
55) Define Excretory System: _____FILTER WATER AND FLUIDS FROM THE BLOOD
AND REMOVE WASTE PRODUCTS FROM THE BODY_________________
56) Define Circulatory System: ____PUMP OXYGEN AND NUTRIENTS THROUGH THE
BLOOD TO EVERY PART OF THE BODY_________________________
57) Define Reproductive System: _____PRODUCES OFFSPRING___
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58) Define Digestive System: ____BREAKS DOWN FOOD TO BE ABSORBED IN THE
BLOODSTREAM___________________________________
Label the parts of the FROG
LIVER
FORELEG
EG
STOMACH
t
SM.INTESTINE
T
LG.INTESTINE
T
T
T
Y
EYE
HIND LEG
M
P
A
N
U59) List in correct order the organization in plants and animals from least to most
M
complex?_CELLS,TISSUES,ORGANS,ORGAN SYSTEMS,ORGANISMS_______
T
Y60) Define Cells:
M
P_____SMALLEST UNIT OF LIFE THAT MAKES UP ALL LIVING THINGS_______
A
N61) Define Tissue:
U_____COLLECTION OF CELLS WITH SIMILAR FUNCTIONS_________
M
I62) Define Organs:
n_____COLLECTION OF TISSUES ___________________________
t
e63) Define Organ Systems:
s
____COLLECTION OF ORGANS THAT ALL WORK TOGETHER___
t
i64) Define Organisms:
n
e_____COLLECTION OF ORGAN SYSTEMS THAT MAKES UP A LIVING THING_
s65) Which two parts of the cell are unique to plant cells?
_____CELL WALL & CHLOROPLASTS__________________________
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Define the Function of each of the Organelles listed below
66) Nucleus:___FOUND IN CENTER OF CELL AND CONTAINS GENETIC MATERIAL
67) Cell Membrane: REGULATES TRANSFER OF MATERIAL IN AND OUT OF THE CELL_
68) Chloroplasts:WHERE PHOTOSYNTHESIS TAKES PLACE IN A PLANT CELL__
69) Cell Wall: _CONTROLS PRESSURE IN CELL_______________
70) Vacuoles: _STORE WATER,WASTE AND NUTRIENTS FOR CELL
71) Cytoplasm: _CLEAR JELLY______________________________________
72) Mitochondria: ____PRODUCE ENERGY FOR THE CELL_____________________
73) Ribosome: _BUILD PROTEIN FOR THE CELL________________
74) Lysosome: _HOLDS ENZYMES THAT ARE MADE IN THE CELL; LOCATION OF
DIGESTION WITHIN THE CELL__________
75) Smooth ER: _DOES NOT HAVE RIBOSOMES ATTACHED TO IT_________
76) Rough ER: _HAS RIBOSOMES ATTACHED TO IT____________________
77) Golgi Body: _GATHERS SIMPLE MOLECULES AND COMBINES THEM INTO MORE
COMPLEX MOLECULES; BUILDS LYSOSOMES_______________
78) Define Cell Theory: _THEORY THAT ALL LIVING THINGS ARE MADE UP OF CELLS__
79) Define Genetics:_THE TRANSFER OF INHERITED TRAITS FROM PARENT TO
OFFSPRING
80) Define Heredity: _THE TRAITS THAT OFFSPRING INHERIT FROM PARENTS
(DOMINANT VS RECESSIVE)_____________________
81) When are recessive genes expressed? _IN THE ABSENCE OF DOMINANT GENES FOR
THAT SAME TRAIT________
82) When are dominant genes expressed? _EVERY TIME THEY ARE FOUND IN AN
ORGANISM_________
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83) Define Asexual Reproduction: _reproductive process that involves one parent and
produces offspring identical to the parent
84) Define Sexual Reproduction: _REPRODUCTIVE PROCESS INVOLVING 2 PARENTS
WHOSE GENETIC MATERIAL IS COMBINED TO PRODUCE A NEW
ORGANISM DIFFERENT FROM THEMSELVES
85) In asexual reproduction, the offspring are diverse or identical? ___IDENTICAL___
86) In sexual reproduction, the offspring are diverse or identical? __DIVERSE_______
87) What is the asexual process that prokaryotes use to reproduce? BINARY FISSION
88) Define prokaryote: __NO NUCLEUS_________
Identify the Four Stages of Mitosis
88.PROPHASE
89.METAPHASE
90.ANAPHASE
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91.TELOPHASE