Unit 9 Ecosystems review
Quiz by TIFFANY SOLOT
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- Q 1/24Score 0
The diagram shows a food web for a certain ecosystem. Which of the following best describes what may happen if pollution caused the fish population to decrease?
29The mouse population may increase.
The crab population may increase.
The heron population may decrease.
The brine shrimp population may decrease.
- Q1
The diagram shows a food web for a certain ecosystem. Which of the following best describes what may happen if pollution caused the fish population to decrease?
The mouse population may increase.
The crab population may increase.
The heron population may decrease.
The brine shrimp population may decrease.
30s - Q2
Which of the following is an abiotic factor in marine ecosystems?
sharks that prey on fish
bacteria that live in the water
the depth of the water
plankton that undergo photosynthesis
30s - Q3
Following a short-term change to the environment, which traits are most likely to be passed onto the next generation?
traits that increase rates of extinction in the changed environment
traits that allow new species to form in different environments
traits that help individuals to survive and reproduce in the changed environment
traits that allow species to avoid natural selection in the changed environment
30s - Q4
Which of the following is a positive result of an artificial reef?
The reef provides shelter for marine life.
Unmarked reefs can damage passing boats.
Toxic materials may leach into the ocean.
Buoyant reefs can move and damage marine life on the seafloor.
30s - Q5
What should you study for the test?
Quizzes and labs
Notes and text book pages
Vocabulary and homework assignments
All of the above
30s - Q6
What happens to the populations of native birds and spiders on a small island after a new species of snake is accidentally introduced to the island.
The snakes are predators who prey on the birds, and the birds are predators who prey on spiders.
The snakes are predators who prey on both birds and spiders.
The snakes and birds are both predators who prey on spiders.
The snakes are predators who prey on spiders, and the spiders are predators who prey on birds. Snakes prey on the spiders and the spiders prey on the birds
30s - Q7
The diagram shows a desert food web. Which would be the most direct cause of an increase in the cacti population?
The population of kangaroo rats decreased
The population of shrubs decreased.
The population of coyotes increased.
The population of insects increased.
30s - Q8
A wild turkey’s diet typically consists of seeds and fruit. Which animal competes the most with the turkey.
Hogs that eat fruit, seeds, and feed
Goats that eats weeds and shrubs
Cattle that eat grass and feed
Deer that eat shrubs and vines
30s - Q9
What can you infer about the effects of deforestation on bird populations?
Deforestation has a slight positive effect on bird populations.
Deforestation has a large negative effect on bird populations
Deforestation has a large positive effect on bird populations.
Deforestation has a slight negative effect on bird populations.
30s - Q10
Which human activity is helpful to ocean ecosystems?
pouring motor oil down the drain
adding chemicals to farmland
building an artificial reef
overharvesting coastal waters
30s - Q11
Which organisms are directly competing for the same food resources in this ecosystem?
the fox and the snake
the fox and the toad
the ground squirrel and the hawk
the toad and the hawk
30s - Q12
Which statement best compares the effects of short-term changes and long-term changes to the environment?
Both short-term changes and long-term changes gradually affect individuals
Short-term changes gradually affect populations. Long-term changes immediately affect individuals.
Short-term changes immediately affect individuals. Long-term changes gradually affect populations.
Both short-term changes and long-term changes immediately affect populations.
30s - Q13
A forest fire kills many organisms and immediately changes the environment. What can you infer about the organisms that survived the immediate change?
They had adaptations that allowed them to survive in the new environmental conditions.
They have adaptations to long-term environmental changes.
They will eventually die from the short-term effects of the fire.
They will lose their ability to reproduce and pass on their traits to their offspring.
30s - Q14
Using the graph below, determine what happened between 1990 and 1995
The two fish populations are unrelated to each other
The rainbow smelt population increased because the ecosystem’s carrying capacity increased
The freshwater ecosystem’s carrying capacity for fish decreased due to limiting factors
The yellow perch population are no longer best adapted to compete for limited resources
30s - Q15
Which of the following is the main producer in a marine ecosystem
Kelp
Zooplankton
all of the answer choices are correct
Phytoplankton
30s
