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Living Earth Unit 1 Test
Living Earth Unit 1 Test
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HMH Unit 1 Living Systems
Flashcards
54 cards
F
Practice quiz
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Host live
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Questions
54
Answers
1
Biotic or abiotic?
Abiotic
Biotic
2
What is primary succession?
The gradual colonization of barren (empty and no soil) land.
When something grows quickly.
When nothing grows at all.
The colonization of land that has soil already present.
3
When two organisms compete for the same limited resource, like food or water.
Competition
Predation
Symbiosis
Friendship
4
Where one specie "benefits" (+) and the other specie is neither "helped" NOR "harmed" (=).
Parasitism
Mutualism
None of the above
Commensalism
5
A measure of the number of different species found within a specific area.
Biodiversity
Community
Habitat
Population
6
Which growth pattern is also called S-shaped growth?
logistic
linear
no possible choices
exponential
7
A hurricane is an example of a human-caused (anthropogenic) disturbance
False
True
8
Where one specie "benefits" (+) and the other specie is "harmed" (-).
Mutualism
Parasitism
Commensalism
None of the above
9
What is secondary succession?
A series of changes in an ecosystem where NO organisms/soil exists.
The study of organisms interacting.
The first species to populate an area.
A series of changes in an ecosystem where organisms/soil exists.
10
Which of the following technologies would
NOT
likely involve an environmental engineer to design and build?
surgical robot
compostable product packaging
fish passageway
wastewater treatment plant
11
Biotic or abiotic?
Abiotic
Biotic
12
Which type of limiting factor limits the size of a population regardless of its density?
density-dependent limiting factor
density-indepedent limiting factor
13
A measurement of the number of individuals living in a defined space is called population _____.
dispersion.
density.
diversity.
distance.
14
Which of the following is the sphere in which human-caused activity is seen?
Hydrosphere
Biosphere
Geosphere
Anthrosphere
15
Biotic or abiotic?
Biotic
Abiotic
16
The picture shows secondary succession
True
False
17
A single species that has an especially strong effect on an entire ecosystem.
Apex predator
Carnivore
Keystone Specie
Tropical rainforest
18
An organism that obtains energy by feeding on other organisms.
Predator
Decomposer
Producer
None of the above
19
Which of the following is an abiotic factor in an ecosystem?
producers
decomposer
organism
water
20
Which of these factors would be a density-dependent limiting factor that could decrease the carrying capacity?
A period of lower than normal rainfall.
a developer fills in a wetland to build an office park
A competing species moves into the forest.
High winds knock down a quarter of the trees.
21
Which level of organization includes all of the living and nonliving factors in an area?
Biosphere
Ecosystem
Population
Community
22
The inputs seen in this diagram are
Plants make food
oxygen and sugars
There is not enough information given
Sunlight, carbon dioxide, and water
23
The human body is an example of a(n)
hydrosphere
atmosphere
closed system
open system
24
Which growth pattern involves a population size increasing dramatically over a period of time?
logistic
linear
no possible choices
exponential
25
Which of the following is not a type of population dispersion?
clumped
random
uniform
scattered
26
Rodents are introduced to a
remote
island & the population reaches the carrying capacity. Birth and death rates are __.
relatively equal
increasing
crashing
decreasing
27
Which of the following are factors in determining the stability of a community? Select any correct answer.
the ability to function during a disturbance
the rate of recovery after a disturbance
the process by which it recovers after a disturbance
whether a disturbance is natural or human-made
28
An ecosystem that can survive and come back from a disturbance is
resistant
resilient
29
Which of these option is not referring to the Engineering Design Process?
Evaluating solutions
Creating prototypes
Developing a hypothesis
Creating solutions to problems
30
A close ecological relationship between two or more organisms of different species is _____________.
Friendship
Predation
Symbiosis
Competition
31
Temperature and precipitation are important abiotic factors in determining which organisms can exist in an biome.
False
True
32
Biotic or abiotic?
Biotic
Abiotic
33
A mushroom's ________ is decomposing plants and animals more quickly.
symbiosis
habitat
niche
population
34
According to the graph, in what year did the population begin to stabilize?
Year 8
Year 4
Year 6
Year 2
35
What other effects will clear-cutting of forests have on this ecosystem? Select any correct answer.
Runoff will affect the stream ecosystem.
Erosion will remove nutrient-rich topsoil.
Nutrients continue to cycle into the soil.
Some animal populations will move away.
36
Which of these are pioneer species for primary succession? Select any correct answer.
shrubs
grass
moss
lichen
37
The tundra and desert are examples of _______________ .
habitats
biomes
ecosystems
communities
38
Which of these best describes a climax community that results from succession?
trees that are all mature
a mixture of pine trees and oak trees
a forest of hardwood trees
depends on the biome
39
If there are 200 deer in an area of 10
2
km, what is the population density?
200 deer/km2
10 deer/km2
20 deer/km2
100 deer/km2
40
Which two factors will increase a population size?
immigration and births
emigration and deaths
immigration and deaths
emigration and births
41
The study of the interaction of living organisms and the environment is called ___________ .
biology
ecology
psychology
sociology
42
Which is NOT an example of a density-dependent limiting factor?
space
disease
natural disaster
competition
43
An antelope population has a NEGATIVE growth rate. Which would be true?
births + immigrations < deaths + emigrations
births + deaths < immigrations + emigrations
births + deaths > immigrations + emigrations
births + immigrations > deaths + emigrations
44
A gray fox's ________ is described as the food it eats, the dens that it uses and the air temperature.
niche
symbiosis
habitat
population
45
A prototype doesn't address the client's needs. What might be a possible next step in the process?
refine the solution
build a new prototype
evaluate the prototype against the criteria and constraints
define and delimit the problem
46
You and a partner have brainstormed a design for a desalination device to help remove salt from ocean water. Next step?
build a working model
revise the design
test on a sample of ocean water
evaluate the plans for the design
47
All the organisms that belong to the same species living together
organism
niche
population
ecosystem
48
________ is the maximum number of individuals that the environment can support.
limiting factors
succession
growth
carrying capacity
49
All
living things have the characteristics of all BUT the following:
Made of one or more cells
Breathe
Maintain homeostasis
Reproduce
50
The first step of the Engineering and Design Process
Identify And Define A Problem,
Gather Information
Communicate The Final Solution
Develop Design Solution
51
What conditions may occur when a population is in exponential growth?
Birth rate is greater than death rate.
Immigration rate is less than emigration rate.
Birth rate is less than death rate.
Immigration rate is greater than emigration rate.
52
Where BOTH species "benefit" (+).
Commensalism
None of the above
Parasitism
Mutualism
53
An organism that obtains energy by feeding on plants.
Carnivore
Omnivore
Producer
Herbivore
54
Which type of population growth is more likely to experience a population crash?
logistic
exponential