each of the following is an abiotic factor in the environment except
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Each of the following is an abiotic factor in the environment EXCEPT
Which is a biotic factor that affects the size of a population in a specific ecosystem? average temperature of the ecosystem type of soil in the ecosystem number and kinds of predators in the ecosystem concentration of oxygen in the ecosystem
Each of the following is an abiotic factor in the environment EXCEPT
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1 Each of the following is an abiotic factor in the environment EXCEPT
plant life soil type Rainfall temperature
2 Which is a biotic factor that affects the size of a population in a specific ecosystem?
average temperature of the ecosystem type of soil in the ecosystem number and kinds of predators in the ecosystem concentration of oxygen in the ecosystem
3 During a long period when there is no rainfall, a mountain lion may temporarily leave its usual hunting territory to drink from a farm pond. This behavior is probably due to its need to find different foods to eat the change in an abiotic factor in its environment its need to find a new habitat the change in a biotic factor in its environment
4 An interaction in which one organism captures and feeds on another organism is called
Competition Symbiosis Mutualism Predation
5 A symbiosis in which both species benefit is
Commensalism Mutualism Competition Parasitism
6 The symbiotic relationship between a flower and the insect that feeds on its nectar is an example of
mutualism because the flower provides the insect with food, and the insect pollinates the flower parasitism because the insect lives off the nectar from the flower commensalism because the insect does not harm the flower and the flower does not benefit from the relationship predation because the insect feeds on the flower
7 When individuals in a population reproduce at a constant rate, it is called
logistic growth growth density exponential growth multiple growth
8 As resources in a population become less available, population growth
declines rapidly increases slowly reaches carrying capacity enters a phase of exponential growth
9 In a logistic growth curve, exponential growth is the phase in which the population
reaches carrying capacity grows quickly and few animals are dying growth begins to slow down growth stops
10 A biotic or an abiotic resource in the environment that causes population size to decrease is a
carrying capacity limiting nutrient limiting factor growth factor
11 All of the following are limiting factors EXCEPT
Immigration Competition Predation Human disturbances
12 If a population grows larger than the carrying capacity of the environment, the
death rate may rise birthrate may rise death rate must fall birthrate must fall
13 Which of the following is characteristic of parasitism?
One organism kills and consumes another. Two organisms live together and neither is harmed Two organisms feed side by side from the same food. One organism lives in or on another and benefits.
14 An ecosystem is made up of:
living things only Physical environment only living things and the physical environment living things and decaying matter
15 When a rabbit population in a meadow cannot grow any larger, it has reached the
Climax community Carrying capacity Limiting factor Minimum size
16 A population of rabbits is at its carrying capacity when the population
Reproduces becomes extinct stops growing can’t survive
17 An unusually cold winter causes the squirrel population to decrease
An unusually cold winter causes the squirrel population to decrease. This is an example of temperature as a carrying capacity Limiting factor Climax community Pattern in space
18 Many individuals of the same species living together in a
Many individuals of the same species living together in a defined area form a/an Community Ecosystem Population Biome
19 Which of the following is characteristic of parasitism?
One organism kills and consumes another. Two organisms live together and neither is harmed One organism lives in or on another and benefits. Two organisms nourish each other; both benefit.
20 Which list of terms is in the correct order, from simplest to most complex?
organism, community, population, ecosystem, biome organism, population, community, biome, ecosystem organism, population, community, ecosystem, biome organism, community, ecosystem, population, biome
21 All the leopard frogs in a pond make up the pond’s leopard frog:
Population Niche Habitat Community
22 Biotic factors in an ecosystem may include:
Biology Ch. 3 Flashcards
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Biology Ch. 3
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The branch of biology dealing with interactions among organisms and between organisms and their environment is called
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ecology
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All of the members of a particular species that live in one area are called a(an)
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population
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Terms in this set (45)
The branch of biology dealing with interactions among organisms and between organisms and their environment is called
ecology
All of the members of a particular species that live in one area are called a(an)
population
Which of the following descriptions about the organization of an ecosystem is correct?
Species make up populations, which make up communities
What is the original source of almost all the energy in most ecosystems?
sunlight
The algae at the beginning of the food chain in Figure 3-1 are
producers
An organism that uses energy to produce its own food supply from inorganic compounds is called a(an)
autotroph
Which of the following organisms does NOT require sunlight to live?
chemosynthetic bacteria
An organism that cannot make its own food is called a(an)
heterotroph
Organisms that obtain nutrients by breaking down dead and decaying plants and animals are called
decomposers
What is an organism that feeds only on plants called?
herbivore
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Each of the following is an abiotic factor in the environment except
Each of the following is an abiotic factor in the environment except a. plant life. c. rainfall. b. soil type. d. temperature.
Biology
Each of the following is an abiotic factor in the environment except
Each of the following is an abiotic factor in the environment except a. plant life. c. rainfall. b. soil type. d. temperature.
Answers
Plant life is not an abiotic factor because plants are living.
a. plant life.
Explanation: Abiotic factors are non-living factors of the environment or ecosystem. They are the chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.
Example of abiotic factors are sunlight, soil, temperature, climate, and water.
a. plant life Explanation:
Plant life is a biotic factor. Biotic factors are all living organisms that contribute to an ecosystem. On the other hand, abiotic factors are non-living factors, such as climatic factors (temperature, rainfall, wind), edaphic factors (soil type, soil texture, soil aeration etc). Changes of abiotic factors can have a huge influence on living organisms of ecosystem. The effects might be benefical or harmful.
The answer is plant life. Plant life is a biotic factor rather than abiotic.
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