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Ecology Test

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Quiz on Ecology Test, created by Amar Malik on 02/06/2018.
Amar Malik
Quiz by Amar Malik, updated more than 1 year ago
Amar Malik
Created by Amar Malik over 6 years ago
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Resource summary

Question 1

Question
[blank_start]Ecology[blank_end] is the study of the environment and everything in it, both living and non-living
Answer
  • Ecology

Question 2

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The [blank_start]biosphere[blank_end] is all the different types of ecosystems found on Earth
Answer
  • biosphere

Question 3

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A [blank_start]habitat[blank_end] is the place where something lives. It includes all the things that make it a suitable place to live. For example, food, water, and shelter.
Answer
  • habitat

Question 4

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A [blank_start]niche[blank_end] is each organisms specific role in the environment
Answer
  • niche

Question 5

Question
Which of the following affects community structures?
Answer
  • Abiotic Factors
  • Light
  • Seasons
  • Biotic Factors
  • Interactions

Question 6

Question
Which of the following are examples of abiotic factors?
Answer
  • Climate
  • Topography
  • Soil Type
  • Plant Structures
  • Human Activity
  • Resources

Question 7

Question
Which of the following is a example of biotic factors?
Answer
  • Evolution
  • Adaptations
  • Diseases
  • Climate

Question 8

Question
Which of the following are examples of interactions?
Answer
  • Adaptations
  • Climate
  • Competition
  • Predation
  • Soil Type
  • Disease
  • Human Activity

Question 9

Question
Any close relationship between species is called [blank_start]symbiosis[blank_end]
Answer
  • symbiosis

Question 10

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A symbiotic relationship in which both species benefits is called [blank_start]mutualism[blank_end]
Answer
  • mutualism

Question 11

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A symbiotic relationship in which one organism benefits and the other is not affected is called [blank_start]commensalism[blank_end]
Answer
  • commensalism

Question 12

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A symbiotic relationship in which one organism benefits but the other is harmed is called [blank_start]parasitism[blank_end]
Answer
  • parasitism

Question 13

Question
The presence of predators usually increases the number of different species that can live in an ecosystem. Predators limit the size of prey population. As a result, there is more food available and less competition between species
Answer
  • True
  • False

Question 14

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[blank_start]Competitive Exclusion[blank_end] is when any two individuals of the same or different species will have differences that makes one a better competitor than the other, so one is naturally excluded. They cannot coexist indefinitely
Answer
  • Competitive Exclusion

Question 15

Question
[blank_start]Keystone species[blank_end] are certain species that are critical to the survival and diversity of the community. They dictate community structures by outcompeting other species. If they are removed, another species may dominate and exclude others. This decreases biodiversity
Answer
  • Keystone species

Question 16

Question
[blank_start]Primary Succession[blank_end] is a series of events that occur during the colonization of barren land. [blank_start]Secondary Succession[blank_end] is a series of events that occur during the re-colonization of distributed land that already possesses soil.
Answer
  • Primary Succession
  • Secondary Succession

Question 17

Question
Lichens and mosses break down rock to produce soil. This is known as
Answer
  • Grasses and Shrubs
  • Small shrubs and trees
  • Pioneer Species
  • Climax Community

Question 18

Question
Opportunistic, fast growing plants colonize and stabilize the soil layer. This is known as
Answer
  • Climax Community
  • Pioneer Species
  • Small shrubs and trees
  • Grasses and Shrubs

Question 19

Question
This outcompetes the grasses for light and nutrients. It is known as
Answer
  • Small shrubs and trees
  • Pioneer Species
  • Climax Community
  • Grasses and shubs

Question 20

Question
Mature trees and shrubs are known as
Answer
  • Small shrubs and trees
  • Climax Community
  • Pioneer Species
  • Grasses and shrubs

Question 21

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[blank_start]Populations[blank_end] are all the individuals of a species that live together in one place at one time
Answer
  • Populations

Question 22

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[blank_start]Demography[blank_end] is the statistical study of populations. It is used to predict how the size of a population will change
Answer
  • Demography

Question 23

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Population size
Answer
  • is the number of individuals in a population
  • influences the growth rate in enviorments
  • has an important impact on evolution
  • has an important effect on the ability of the population to survive

Question 24

Question
A small population is more likely to become extinct
Answer
  • because of natural selection
  • in the case of random events or natural disaster
  • due to inbreeding where the population is more genetically alike. Recessive traits are more likely to appear.
  • in order to achieve evolution
  • with reduced variability it is harder to adapt the changes

Question 25

Question
Population density
Answer
  • the second major impact in evolution
  • the number of individuals in a given area
  • if they are too far apart they may only rarely encounter one another resulting in little reproduction
  • a cause of natural disasters

Question 26

Question
Disease, competition, predators, parasites, food, and crowding are all examples of [blank_start]density-dependent factors[blank_end].
Answer
  • density-dependent factors

Question 27

Question
Volcanic eruptions, temperature, storms, floods, droughts, chemical pesticides, and major habitat disruptions are examples of [blank_start]density-independent[blank_end] factors.
Answer
  • density-independent

Question 28

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[blank_start]Dispersion[blank_end] is the way in which individuals are arranged.
Answer
  • Dispersion

Question 29

Question
Model
Answer
  • a hypothetical population that has key characteristics of the real population being studied.
  • reflects the birth and death rates in society
  • illustrates the population in the past
  • used by demographers to predict how a population will grow

Question 30

Question
[blank_start]Exponential growth curve[blank_end] is the population growth plotted against time. As a population gets larger, it also grows at a faster rate. This is the maximum population growth under ideal circumstances. It includes plenty of room for each member, unlimited resources, and no hindrance.
Answer
  • Exponential growth curve

Question 31

Question
This model accounts for the declining resources available to populations as they grow.
Answer
  • Carrying capacity
  • Logistic model
  • Exponential growth curve
  • Exponential decay curve

Question 32

Question
The number of organisms of one species that an environment can support indefinitely
Answer
  • Carrying Capacity
  • Logistic Model
  • Exponential decay curve
  • Exponential growth curve

Question 33

Question
What are 2 ways a population can prosper?
Answer
  • Depends of exponential growth rate
  • Depends on the rate of growth
  • Depends on the population density
  • Influenced by the carrying capacity

Question 34

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[blank_start]R-strategists[blank_end] are characterized by exponential growth, which results in temporarily large populations, followed by sudden crashes in population size. R=rate of growth
Answer
  • R-strategists

Question 35

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[blank_start]K-strategists[blank_end] are characterized by a high degree of specialization. K=carrying capacity.
Answer
  • K-strategists

Question 36

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An [blank_start]ecosystem[blank_end] is a collection of organisms and their enviorment
Answer
  • ecosystem

Question 37

Question
All of Earth's energy comes from the sun
Answer
  • True
  • False

Question 38

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[blank_start]Photosynthesis[blank_end] is when organisms use the Sun's energy to create energy rich molecules
Answer
  • Photosynthesis

Question 39

Question
What are sugars made up of?
Answer
  • Carbon
  • Phosphorous
  • Nitrogen
  • Oxygen
  • Hydrogen

Question 40

Question
Energy is stored in the [blank_start]chemical bonds[blank_end] of the atoms. When the bond is broken, energy is [blank_start]released[blank_end] to fuel life processes
Answer
  • chemical bonds
  • released

Question 41

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A [blank_start]producer[blank_end] is an organism that uses an outside energy source like the Sun to make energy-rich molecules
Answer
  • producer

Question 42

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What does most producers contain? What is it required for?
Answer
  • Energy ; Chemosynthesis
  • Producers; Photosynthesis
  • Chlorophyll; Photosynthesis
  • Consumers; Chemosynthesis

Question 43

Question
Green plants are [blank_start]producers[blank_end].
Answer
  • producers

Question 44

Question
Organisms that are found near volcanic vents in the ocean floor that make energy-rich molecules do it through a process called [blank_start]chemosynthesis[blank_end]
Answer
  • chemosynthesis

Question 45

Question
A [blank_start]consumer[blank_end] is an organism that cannot make their own food so they obtain energy by eating other animals. The four types are herbivores, carnivores, omnivores, and decomposers.
Answer
  • consumer

Question 46

Question
A food chain is a simple model of the feeding relationship in an ecosystem.
Answer
  • True
  • False

Question 47

Question
This describes the concentration of toxins at higher trophic levels due to an increase of ingested biomass
Answer
  • Eutrophication
  • Human Impact-Depletion of the Ozone Layer
  • Biological Magnification
  • Acid Rain

Question 48

Question
This is the excess algal growth in bodies of water due to nutrient over-enrichment
Answer
  • Acid Rain
  • Eutrophication
  • Biological Magnification
  • Human Impact- Depletion of the Ozone Layer

Question 49

Question
This causes damage to the ozone layer; there is a hole that doesn't protect as effectively against solar UV rays
Answer
  • Human Impact
  • Biological Magnification
  • Eutrophication
  • Air Pollutants

Question 50

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[blank_start]Acid Rain[blank_end] is when precipitation combines with sulfates in the air released from pollution to make acid rain
Answer
  • Acid Rain

Question 51

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All of the individuals of a species that live together in one place at one time is a [blank_start]population[blank_end].
Answer
  • population

Question 52

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The movement of individuals into a population from another area is called [blank_start]immigration[blank_end]
Answer
  • immigration

Question 53

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The movement of individuals out of a population is called [blank_start]emigration[blank_end]
Answer
  • emigration

Question 54

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[blank_start]Intraspecific[blank_end] competition is when members of the same species compete for limited resources, while [blank_start]interspecific[blank_end] competition is when different species compete for limited resources.
Answer
  • Intraspecific
  • interspecific
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