E C O S Y S T E M 2007

Brent  Daigle, Ph.D.
Brent Daigle, Ph.D. Researcher - Professor um Teacher Test Review, LLC
Ecosystems
An ecologist studies how living things interact with each other and with their environment.  Presented by Brent Daigle, Ph.D. (ABD)
An ecologist doesn't just study fish, for instance. They study the fish, water, sunlight, its food supply, things that eat the fish, and every possible thing that might affect the fish in its lifetime.  Ecologists study  specific areas called  ecosystems . Presented by Brent Daigle, Ph.D. (ABD)
The  word ecosystem is short for ecological system . An ecosystem is a   system of living things interacting with their environment .  An ecosystem includes all of the living organisms in a specific area.   Presented by Brent Daigle, Ph.D. (ABD)
An ecosystem also   is the way the plants and animals interact with non-living things in the system such as weather, soil, sun, and the atmosphere. The way an ecosystem develops is completely dependent upon the energy that moves in and out of the system. You could have an entire ecosystem underneath a boulder. On the other hand, you could be talking about the  overall ecosystem of the planet Earth . Presented by Brent Daigle, Ph.D. (ABD)
An ecosystem can be as small as a puddle or as large as the Atlantic Ocean. An ecosystem is a whole community of different living organisms and their surroundings. Trying to understand an ecosystem is no easy task. Since humans, animals, and plants are in steady interaction with each other, they are all constantly changing aspects of the environment. Presented by Brent Daigle, Ph.D. (ABD)
Interactions among all species could have a number of positive and negative effects. Humans, for instance, impact the environment by cutting trees, burning fossil fuels, and getting rid of trash. This obviously affects populations of wild animals who lose their habitats to new home developments and landfills . Presented by Brent Daigle, Ph.D. (ABD)
Ecologists might do experiments to find out what kinds of conditions a type of plant needs to survive. These conditions include   temperature ,  amount of water ,  and amount of light .  Presented by Brent Daigle, Ph.D. (ABD)
Ecologists might also study how an animal gets food and how it protects itself from predators. Another area of study is how the   types of organisms that live in an area change over time . Presented by Brent Daigle, Ph.D. (ABD)
Some ecologists study how populations of organisms increase or decrease. By observing a population, they can calculate its birth rate and its death rate. The birth rate of a population is the number of organisms that are born in a given amount of time. The death rate of a population is the number of organisms that die in a given amount of time. A population is likely growing if its birth rate is larger than its death rate.
Ecologists are  interested in the relationships between living things and have a real interest in nature . They are constantly searching for answers to complex questions, have the ability to learn new concepts quickly and think logically. As scientists, they must maintain the ability to  remain objective in all of their research  and studies. Presented by Brent Daigle, Ph.D. (ABD)
Most ecologists are scientists with backgrounds in chemistry, environmental science, geology, biology, climatology, statistics and, in many cases, economics. It is also necessary for ecologists to know how to use computers. Ecologists may work for universities, governments, environmental groups, or private companies. Presented by Brent Daigle, Ph.D. (ABD)
What is an ecologist?     A.  A person who studies animals but not plants     B.  A person who studies only the nonliving things in an environment     C.   A person who studies the interaction of living things in an environment     D.  A person who studies plants but not animals Presented by Brent Daigle, Ph.D. (ABD)
A system of living things interacting with their environment is called ______.     A.  A population       B.  A niche        C.   A  habitat   D.  An ecosystem Presented by Brent Daigle, Ph.D. (ABD)
What is the birth rate of a population? Presented by Brent Daigle, Ph.D. (ABD)
What is the death rate of a population? Presented by Brent Daigle, Ph.D. (ABD)
Which of the following would ecologists  not  study?     A.  How plastic expands when it is heated.     B.  How rabbits escape from predators     C.   How beavers get food.     D.  How much water is needed for a corn crop.   Presented by Brent Daigle, Ph.D. (ABD)
Which of these things would be considered part of an ecosystem?     A.  Food Supply.    B.  Water     C.   Sunlight       D.  All of the above   Presented by Brent Daigle, Ph.D. (ABD)
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E C O S Y S T E M 2007

  • 2. An ecologist studies how living things interact with each other and with their environment. Presented by Brent Daigle, Ph.D. (ABD)
  • 3. An ecologist doesn't just study fish, for instance. They study the fish, water, sunlight, its food supply, things that eat the fish, and every possible thing that might affect the fish in its lifetime. Ecologists study specific areas called ecosystems . Presented by Brent Daigle, Ph.D. (ABD)
  • 4. The word ecosystem is short for ecological system . An ecosystem is a system of living things interacting with their environment . An ecosystem includes all of the living organisms in a specific area. Presented by Brent Daigle, Ph.D. (ABD)
  • 5. An ecosystem also is the way the plants and animals interact with non-living things in the system such as weather, soil, sun, and the atmosphere. The way an ecosystem develops is completely dependent upon the energy that moves in and out of the system. You could have an entire ecosystem underneath a boulder. On the other hand, you could be talking about the overall ecosystem of the planet Earth . Presented by Brent Daigle, Ph.D. (ABD)
  • 6. An ecosystem can be as small as a puddle or as large as the Atlantic Ocean. An ecosystem is a whole community of different living organisms and their surroundings. Trying to understand an ecosystem is no easy task. Since humans, animals, and plants are in steady interaction with each other, they are all constantly changing aspects of the environment. Presented by Brent Daigle, Ph.D. (ABD)
  • 7. Interactions among all species could have a number of positive and negative effects. Humans, for instance, impact the environment by cutting trees, burning fossil fuels, and getting rid of trash. This obviously affects populations of wild animals who lose their habitats to new home developments and landfills . Presented by Brent Daigle, Ph.D. (ABD)
  • 8. Ecologists might do experiments to find out what kinds of conditions a type of plant needs to survive. These conditions include temperature , amount of water , and amount of light . Presented by Brent Daigle, Ph.D. (ABD)
  • 9. Ecologists might also study how an animal gets food and how it protects itself from predators. Another area of study is how the types of organisms that live in an area change over time . Presented by Brent Daigle, Ph.D. (ABD)
  • 10. Some ecologists study how populations of organisms increase or decrease. By observing a population, they can calculate its birth rate and its death rate. The birth rate of a population is the number of organisms that are born in a given amount of time. The death rate of a population is the number of organisms that die in a given amount of time. A population is likely growing if its birth rate is larger than its death rate.
  • 11. Ecologists are interested in the relationships between living things and have a real interest in nature . They are constantly searching for answers to complex questions, have the ability to learn new concepts quickly and think logically. As scientists, they must maintain the ability to remain objective in all of their research and studies. Presented by Brent Daigle, Ph.D. (ABD)
  • 12. Most ecologists are scientists with backgrounds in chemistry, environmental science, geology, biology, climatology, statistics and, in many cases, economics. It is also necessary for ecologists to know how to use computers. Ecologists may work for universities, governments, environmental groups, or private companies. Presented by Brent Daigle, Ph.D. (ABD)
  • 13. What is an ecologist?    A. A person who studies animals but not plants    B. A person who studies only the nonliving things in an environment    C. A person who studies the interaction of living things in an environment    D. A person who studies plants but not animals Presented by Brent Daigle, Ph.D. (ABD)
  • 14. A system of living things interacting with their environment is called ______. A. A population     B. A niche    C. A habitat D. An ecosystem Presented by Brent Daigle, Ph.D. (ABD)
  • 15. What is the birth rate of a population? Presented by Brent Daigle, Ph.D. (ABD)
  • 16. What is the death rate of a population? Presented by Brent Daigle, Ph.D. (ABD)
  • 17. Which of the following would ecologists not study?    A. How plastic expands when it is heated.    B. How rabbits escape from predators    C. How beavers get food.    D. How much water is needed for a corn crop. Presented by Brent Daigle, Ph.D. (ABD)
  • 18. Which of these things would be considered part of an ecosystem?    A. Food Supply.   B. Water    C. Sunlight    D. All of the above   Presented by Brent Daigle, Ph.D. (ABD)