Font size
WorksheetsUnit 4 Exam Review
Total questions: 27
Worksheet time: 14mins
Many local flowers have been infected with a fungal disease. The fungus has killed many of the plants. What kind of relationship is this?
mutualism
parasitism
competition
commensalism
Consider the following food chain: grass --> rabbit --> fox. What is the role of the fox?
producer
decomposer
primary consumer
secondary consumer
Two species of fish live in a pond together. You observe that fish species A is declining while fish species B is rising. Which of the following is NOT a possible explanation for the decline of fish A?
Fish B prey on fish A.
Fish A produces fewer offspring than fish B.
Fish B resists a new disease fish A cannot.
Fish A cannot compete with Fish B for the same food.
This biome contains deciduous trees, fox, deer, moderate rainfall, and 4 distinct seasons.
taiga
tundra
grassland
temperate forest
Which level of the energy pyramid contains the organisms with the most energy?
producers
tertiary consumers
primary consumers
secondary consumers
A new species of snake has been introduced to Georgia. There are now many more snakes and many fewer mice in the area. What is the most likely explanation?
The mice became prey to the snakes.
The snakes competed with the mice for a common food.
The mice had to move because the snakes were dominant.
The people trapped and killed the mice, eliminating the snakes' predator.
The northern US and southern Canada are characterized by forests of trees that lose their leaves in winter and trees that are green year-round. This area is a transition zone between which two biomes?
taiga
desert
rainforest
northern prairie
temperate forest
In LaGrange, there used to be fewer than 15 coyotes. Then, they increased to nearly 100 coyotes before declining to 70 coyotes. For the past several years, there have remained between 85 and 75 coyotes. Which is the most likely carrying capacity for coyotes in LaGrange?
15
80
70
100
For many years, DDT was used to control mosquitos around West Point Lake. The poison entered the water and was absorbed by the plants and animals living in the lake. When female bald eagles ate fish from the lake, they produced very fragile eggs that broke before the babies could hatch. In 1972, DDT was banned by the State of Georgia. What happened to the eagle population?
It declined sharply.
It increased sharply.
It stayed the same.
It gradually decreased.
Consider the following food chain: corn --> mice --> snakes --> owls. Which statement is correct?
Corn is a heterotroph.
Mice are producers.
Owls are consumers.
Snakes are autotrophs.
A unidentified plant grows in clusters low to the ground, sometimes under a layer of snow. It can carry out photosynthesis in freezing conditions. It's leaves are small and can hold moisture. It flowers very briefly during summer. Where was this plant most likely found?
tundra
desert
grassland
rainforest
Ants and acacia trees have a mutualistic relationship. The plans give the ants shelter and food. The ants sting anything that tries to eat the tree's leaves. Which statement best explains their relationship?
The ants harm the tree.
They are both part of the same ecosystem.
Both species benefit from living with each other.
The ants benefit from the tree, but the acacia does not benefit from the ants.
As the number of deer in an area increase, what would you expect to happen to the number of wolves in the same area?
They would increase
They would stay the same
They would sharply decrease
They would gradually decrease
Consider the following food chain: kelp --> sea urchins --> crabs --> sea ducks --> arctic foxes. What would happen in this food chain if sea otters moved into the area and ate most of the sea urchins?
kelp has less food
crabs have more food
sea ducks have less food
arctic foxes have more food
In LaGrange, squirrels make up a significant portion of the coyotes' diet. A disease causes the squirrel population to dramatically decrease. How to the populations react?
both populations decrease
coyotes increase while squirrels decrease
squirrels decrease while coyotes stay the same
squirrels will decrease below the number of coyotes
Which biome is known for large herbivores, few trees, ad fire-dependent ecology?
tundra
desert
grassland
tropical rainforest
Which is the correct order of climates as you move from the equator to the North Pole?
arctic, tropic, temperate
temperate, arctic, tropic
tropic, arctic, temperate
tropic, temperate, arctic
Humans are able to have the greatest impact on the environment because...
they need food
they need water
they can adapt to change
they can alter the environment
Which accurately describes the flow of energy in a food pyramid?
Energy flow through the organisms from top to bottom and increases at each level.
Energy flow through the organisms from bottom to top and increases at each level.
Energy flow through the organisms from top to bottom and decreases at each level.
Energy flow through the organisms from bottom to top and decreases at each level.
The pom-pom crab carries sea anemones around in its claws. The crab uses the anemones stingers for defense. The anemones eat scraps that they crab drops. What type of symbiosis is this?
predation
mutualism
parasitism
commensalism
Where are deserts mostly located?
around the equator
northern Africa and Australia
towards the North and South Poles
norther parts of North America and Asia
Lemmings are small mammals that experience a population explosion about once every four years, followed by a steep decline. Owls eat lemmings. Which of these statements is most likely true?
Owls are becoming extinct.
Lemmings live longer than owls.
The habitat of the lemmings is shrinking.
When lemming populations increase, owl populations increase.
Consider the following food chain: ice algae --> krill --> fish --> seals --> polar bears. Where would bacteria go in the food chain?
All organisms point to bacteria because it is a decomposer.
Bacteria points to all organisms because it can be found everywhere.
Bacteria is at the end of the food chain because it breaks down dead polar bears.
Bacteria begins the food chain because it recycles nutrients from dead things that algae use to grow.
Deer have been living in balance in the local ecosystem. Then a drought occurs and lasts for several years. What does the population look like over a ten year span?
increase
decrease, then increase
increase, then decrease
increase, then flat, then decrease
Which list of biomes is correctly order from least to most rainfall?
tundra, temperate forest, desert, rainforest
desert, tundra, temperate forest, rainforest
rainforest, desert, temperate forest, tundra
rainforest, temperate forest, desert, tundra
Which is the best analogy between students to illustrate commensalism?
One student bullies another.
Two students help each other with homework.
One student steals from another.
One student borrows a ruler to draw a line, then returns it.
What is the difference between a food web and a food chain?
the number of trophic levels
the percent of energy lost at each trophic level
the percent of energy transferred to each trophic level
the number of organisms in each trophic level
