Transcript 1. Which of the following food chains shows how the sun*s energy

1. Which of the following food chains shows how the sun’s
energy flows through living things in a pond ecosystem?
A. Sun  algae  small fish  large fish  eagle
B. Eagle  large fish  small fish  algae sun
C. Sun  tadpole  frog  algae  water lily
D. Algae  water lily  tadpole  frog  sun
2. A young man tries to push a boulder up a snow covered hill. Although
he pushes until he starts to sweat, the boulder slides slowly down the hill.
Which statement describes whether the boy has done work on the
boulder?
F. The boy has done work on the boulder because he is pushing so hard on
the boulder that he is sweating.
G. The boy has done work on the boulder because he is applying a push
force to the boulder and the boulder is moving downhill.
H. The boy has not done work on the boulder because the boulder is
moving in the opposite direction from his push force.
J. The boy has not done work on the boulder because the boy has not
3. Which of the following energy pyramids best
describes the energy flow occurring in a marine
ecosystem?
4. A woman uses 5 N of force to cut through an
orange 0.1 m in diameter. How much work does
she do? Show your answer in a grid that you made.
F 0.5 J
G 1.5 J
H 5.0 J
J 5.1 J
5. Based on the diagram above, which of the following shows the correct
order of ecological succession?
A. I, II, III, IV,
B. III, I, II, IV
C. II, IV,I, III
D. III, I, IV, II
Use the illustration to answer questions 6 and 7.
The biome shown in the picture below is of the Tundra. This biome is
characterized by extremely cold climate and low biotic diversity.
6. Which of these organisms is not likely to live in the biome shown?
A. protista
B. White tailed deer
C. seals
D. fungi
7. The extreme climate of the Tundra ecosystem in the
diagram above has the most effect on the
_______________.
F. soil
G. water
H. living things
J. air
8. A young lady applies a force of 50 Newton to lift a flower off of the floor.
She stands holding the flower until her mother arrives in the car. She then
walks to the car holding the flower and gives it to her mother. At which point
has the young lady done work on the flower?
A. when she lifts the box off the floor and when she stands holding the box
B. only when she walks to the car the box
C. only when she lifts the box off the floor
D. when she lifts the box off the floor and when she walks to the car with the
box
9. A biological diverse area has___.
F. no living things
G. a few different kinds of living things
H. many different kinds of living things
J. a large number of one kind of living thing
Study the drawing showing the progression of ecological succession following a forest
fire.
10. What is the role of the pioneer species that appear first in the ecological
succession of the burned forest?
A. The pioneer species modify the forest floor, allowing other species to move into
the area
B. The pioneer species prevent new fires from starting in the forest.
C. The pioneer species prevent other species of plants from invading the area.
D. The pioneer species mutate into new species that are resistant to forest fires.
Organic compound???
11. Which of the following lists of elements are contained in
organic compounds?
F. calcium, iron, and potassium
G. carbon, hydrogen, and oxygen
H. cobalt, phosphorus, and sodium
J. copper, magnesium, and sulfur
12. In Galveston, the beaches are often exposed to hurricanes originating in the
Gulf of Mexico. It is reasonable to predict that hurricane activity may __.
A. create new rivers near Galveston
B. cause beaches and soil to be lost due to erosion
C. cause local earthquakes after the storm
D. shorten the growing season due to temperature changes
13. What factor contributes most to promoting
sustainability in an ecosystem?
A. lack of decomposers
B. absence of bacterial species
C. large variety of organisms
D. a balanced water table
14. A volcano erupts, covering a mountainside
with layers of ash. What will happen after rain
washes away some of the ash?
F. Primary succession will begin.
G. Seeds and roots will sprout and grow.
H. Pioneer plants will grow on the soil.
J. A climax community will develop.
15. Which of the following is a chemical change that
takes place in the mouth during digestion?
F. The tongue shapes the food into a ball.
G. Saliva mixes with the food to make it wet.
H. Teeth chop, tear and grind food in the mouth.
J. Enzymes change carbohydrates in food to sugars.
16. All of the following are true statements regarding the
cycling of matter except---
A. decomposers break down dead organisms and other
organic materials with the soil
B. decomposers release nutrients back into the
environment as matter is cycled.
C. decomposition adds nutrient rich humus to soil to
improve crops.
D. decomposers are at the base of the food chain and
provide food for primary consumers
17. The extremely strong winds associated with a tornado
will have the greatest negative effect on which of the
following kinds of organisms?
F. fish that feed around coral reefs
G. smaller mammals that burrow underground
H. birds and other animals that use trees for shelter
J. organisms that feed on decaying plants and animals
18. A habitat that receives little or no
precipitation will most likely be suitable for
organisms that ___.
F. hibernate for long periods of time
G. are covered in thick fur to keep warm
H. spend most of the day in the sunlight
J. store large quantities of water internally
19. Plants use photosynthesis to meet their
survival needs by enabling them to –
A. convert radiant energy into chemical energy
B. change carbohydrates into proteins
C. release carbon dioxide into the atmosphere
D. capture oxygen from water molecules
20. Which of the following are the large
molecules which are broken down into smaller
pieces during digestion?
A. simple sugars
B. carbohydrates
C. fatty acids
D. amino acids
21. An increase in temperature and high winds dries out a
grassland. How will these changes affect the equilibrium
or sustainability of the ecosystems there?
A. The changes will cause primary succession
B. They will affect the kinds of living things that can
survive there.
C. They will lead to a climax community.
D. They will help the ecosystem regain its equilibrium.