WorksheetsLiving Earth Unit 1 Post Test Review
Total questions: 24
Worksheet time: 16mins
Name
Class
Date
1.
Consider the following scenario: (Penguin J) has an injured flipper and lives in a group of penguins of the same species as (Penguin K). Penguin K is a non-injured Penguin. How would the survival of these two penguins be different?
a)
They wouldn't have different survival
b)
Penguin J would have increased survival as it can more easily stay with the group.
c)
Penguin J would have decreased survival because it would have less ability to swim and would have a harder time keeping up with the group.
d)
Penguin K would have decreased survival because it would have less ability to swim and would have a harder time keeping up with the group.
2.
What is a population?
a)
Each step in a food chain, food web, or on a biomass pyramid.
b)
Simplified model that shows an energy flow through an ecosystem.
c)
A community of organisms and their abiotic environment.
d)
A group of individuals that belong to the same species and can interbreed and live in the same area.
3.
What is biodiversity?
a)
The total amount of living tissue in a trophic level.
b)
The different types of creatures (species) in an ecosystem.
c)
A group of similar organisms that can breed and produce fertile offspring.
d)
The ability of multiple species to function in a landscape.
4.
An area of very high biodiversity would be a_____________________
a)
coral reef in the ocean
b)
desert
c)
forest
d)
open ocean
5.
What does "abundance" of an organism mean?
The ____________________of the organism(s).
The ____________________of the organism(s).
a)
weight (biomass)
b)
size (length)
c)
number(s) (how many)
6.
In what year did the three mammal populations fully recover from the volcanic eruption?
a)
1984
b)
1985
c)
1986
d)
1987
7.
Between 1980 and 1990 the bobcat population increased dramatically in the area to a population 10 times its previous size. What type of relationship occurred between bobcats and the other three species?
a)
Bobcats are predators and the others are prey.
b)
In the year 1988, the bobcats probably had their greatest increase since the prey dropped the most.
c)
In the year 1982, the Bobcats had the greatest increase since the prey had the greatest decline.
d)
Rabbits were the most affected.
8.
Scientists collected data on a type of duckling found in the area affected by the volcanic eruption. They found that the duckling had reduced reproductive success and survival. What does reduced reproductive success and survival mean?
a)
Less offspring survive and the duckling dies.
b)
Producing less offspring as a group and the duckling is less likely to survive.
c)
The duckling is less likely to have offspring and less likely to live.
d)
The duckling is more likely to have offspring and more likely to live.
9.
Using the graph, what change most likely caused the population trend shown?
a)
increased carnivores
b)
increased herbivores
c)
Increased rainfall
d)
increased decomposers
10.
Compare the shape of the trend line between years 1-2 and years 2-4.
a)
Years 1-2) The trend line was sloped slightly down and in (years 2-4) it was sloped steeply upwards.
b)
Years 1-2) The trend line was sloped slightly up and in (years 2-4) it was sloped steeply downwards.
c)
Years 1-2) The trend line was sloped sharply down and in (years 2-4) it was sloped steeply down.
d)
Years 1-2) The trend line was sloped slightly up and in (years 2-4) it was sloped steeply upwards.
11.
Species 5's population starts to level off around day 19 (reach carrying capacity). Which of the following could be a limiting factor that could explain this pattern?
a)
Food limitations
b)
Predators
c)
Disease
d)
All responses are correct
12.
What is carrying capacity?
a)
The ability of the land to handle the species that are on it.
b)
The maximum number of individuals an environment can support.
c)
The number of communities the ecosystem can support.
d)
How quickly the environment responds to a disturbance.
13.
Which cage has the higher carrying capacity? Why?
a)
Cage A < Cage B carrying capacity because the number of communities are supported.
b)
Cage B > Cage A carrying capacity because more individuals are supported.
c)
Cage B > Cage A carrying capacity because the environment can respond quicker to an environmental change.
d)
Cage A< Cage B carrying capacity because the land can handle more species.
14.
What percent of energy is transferred between trophic levels in an energy pyramid?
a)
10%
b)
50%
c)
100%
d)
25%
15.
Why are there usually few organisms at the top of an energy pyramid?
a)
there is much less energy available so there are less organisms supported at the top of the pyramid
b)
humans hunt for organisms at this level
c)
the organisms at the top of the energy pyramid are consumed by the oraganisms at the base of the pyramid
d)
organisms at the top are larger and require more living space
16.
Rabbits eat grass and other plants to survive, but they do not eat animals. What kind of animal are rabbits?
a)
Producer
b)
Primary Consumer
c)
Secondary Consumer
d)
Decomposer
17.
Which of these organisms would be most likely to be found at the top of an energy pyramid?
a)
Crab
b)
Shark
c)
Sardine
d)
Kelp
18.
Which trophic level in this pyramid would have the greatest amount of biomass?
a)
Phytoplankton trophic level
b)
Crustacean trophic level
c)
Mackerel trophic level
d)
Shark trophic level
19.
If there are 10,000 units of energy available at the phytoplankton trophic level, approximately how many units of energy are available at the herring trophic level?
a)
10,000
b)
1,000
c)
100
d)
10
20.
Which trophic level in this pyramid would have the greatest amount of available energy?
a)
Shark
b)
Mackerel
c)
Herring
d)
Phytoplankton
21.
A __________ is best defined as a group of individuals of the same species inhabiting an area.
a)
Community
b)
Ecosystem
c)
Population
d)
Habitat
22.
What is the seasonal movement of an animal to another location to find food called?
a)
migration
b)
social interaction
c)
grouping
d)
camouflage
23.
Which of the following is the best reason why a pod of killer whales might choose to hunt together?
a)
A large pod size might be beneficial for herding and hunting fish
b)
The whales are camouflaged if they hunt in large groups
c)
The whales are social and do not enjoy being alone
d)
Killer whales do not hunt in groups
24.
A scientist is studying two wolves in Yellowstone National Park. Wolf A is generally healthy. Wolf B is generally healthy but has recently lost his sense of smell. Predict the survival outcomes for these two organisms.
a)
Wolf A is more likely to survive and reproduce than Wolf B
b)
Wolf B is more likely to survive and reproduce than Wolf A
c)
Both of these organisms have an equal chance of survival in this ecosystem - sense of smell will not impact survival outcomes
d)
Both organisms will likely get eaten by a predator and have a low chance of survival
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