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4th Nine Weeks Exam--Environmental Factors And Body Systems
Test Description: Review of Nine Weeks Material
Instructions: Answer all questions to get your test result.
1) Which of the following is a biotic factor that could reduce a population of frogs?
A
drought that dries up ponds and puddles
B
an increase in aquatic bird poulations
C
a decrease in parasite flukes
D
water pollution from chemical fertilizers
2) When a jellyfish paralyzes a tiny fish with its tentacles, the fish is the
A
prey
B
consumer
C
predator
D
decomposer
3) In a marine ecosystem, the remora attaches to the belly of a shark and feed off the scraps. The shark is not afffected by the relationship. This is an example of which symbiotic relationship?
A
predator-prey
B
parastitic
C
competetive
D
commensalism
4) What would happen if there were no fungi and bacteria on Earth?
A
The human population would increase
B
Plants would grow excessive heights
C
Earth would be buried in waste
D
There would be no disease
5) Which of the following is MOST responsible for making a fallen tree decay and become an important part of the soil?
A
insects
B
moisture
C
bacteria
D
sunlight
6) Which ecosystem is found where fresh water of a river and salt water of the ocean meet?
A
surface open ocean
B
neritic zone
C
estuary
D
rocky intertidal zone
7) Which biome is most common in Africa?
A
Savanna
B
Temperate Forest
C
Tiaga
D
Desert
8) In a certain habitat, young deer were the main source of food for wolves. A severe snowstorm kills many of the young deer one year. Which of the following best describes what probably occurred the next year?
A
The wolves learned to eat producers.
B
Some wolves died or moved to another habitat.
C
The deer population was completely destroyed
D
The deer moved south to have their young.
9) What is the name of the small flap that seals off the trachea during swallowing?
A
larynx
B
epiglottis
C
pharynx
D
alveoli
10) The role of the respiratory system is to bring what substance into the body?
A
oxygen
B
red blood cells
C
water
D
carbon dixoxide
11) What kind of motion is possible with a hinge joint?
A
back and forth
B
side to side
C
rotating
D
sliding
12) Oxygen rich blood travels AWAY from the heart through
A
veins
B
arteries
C
bones
D
capillaries
13) Lichen results from a symbiotic relationship between algae and fungi. In this relationship each organism helps the other survive. This is an example of
A
commensalism
B
predator-prey
C
mutualism
D
parasitism
14) Decomposers depend on consumers because
A
decomposers can produce food for consumers
B
consumers can produce their own food
C
dead consumers have nutrients in them
D
dead producers have nutrients in them
15) After walking through a field, you find a tick attached to your leg. What is the tick's relationship to you?
A
parasite
B
prey
C
host
D
pedator
16) Ponds and rivers are two types of
A
freshwater ecosystem
B
rainforest ecosystems
C
marine ecosystems
D
estuary ecosystem
17) A bird eats a caterpillar that ate a tree leaf. The tree is an example of a
A
carnivore
B
decomposer
C
consumer
D
producer
18) Which organ system is responsible for removing or helping waste EXIT the body?
A
skeletal
B
muscular
C
excretory
D
nervous
19) If a person lacked platelets, which process could not take place?
A
carrying glucose to cells
B
carrying oxygen to cells
C
clotting of blood
D
transfusing of blood
20) Which biome, because of its climate (warm and humid), has the largest number of species of plants and animals?
A
tundra
B
taiga
C
desert
D
tropical rain forest
*select an answer for all questions
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