Levels of Organization
Food Web/Food Chain
Levels of Energy
Biogeochemical Cycles
Random
100
The combined portions of Earth in which all living things exist is called the...
Biosphere
100
What is the difference between a food web and a food chain?
A food chain shows a single chain of how energy transfers from one organism to the next and a food web shows a number of chains at once and how they all are connected.
100
What is the term for each step in the transfer of energy and matter within a food web?
Trophic level
100
What are the 3 main biogeochemical cycles?
The water cycle, the carbon cycle, and the nitrogen cycle
100
All the interconnected feeding relationships in an ecosystem make up a food...
web
200
All of the members of a particular species that live in one area are called a(an)...
Population
200
The algae at the beginning of the food chain would be called...
Producers
200
A snake that eats a frog that has eaten an insect that fed on a plant is a
Tertiary or Third level consumer
200
Matter can recycle through the biosphere because a. matter is passed out of the body as waste. b. matter is assembled into chemical compounds. c. biological systems do not use up matter, they transform it. d. biological systems use only carbon, oxygen, hydrogen, and nitrogen.
c. biological systems do not use up matter, they transform it.
200
If a nutrient is in such short supply in an ecosystem that it affects an animal’s growth, the a. animal becomes a decomposer. b. substance is a limiting nutrient. c. nutrient leaves the food chain. d. ecosystem will not survive.
b. substance is a limiting nutrient.
300
Which of the following is correct? a. Communities make up species, which make up populations. b. Populations make up species, which make up communities. c. Species make up communities, which make up populations. d. Species make up populations, which make up communities.
d. Species make up populations, which make up communities.
300
Plants are also called...
Producers or Autotrophs
300
Most of the energy available to a consumer trophic level is used by organisms for a. transfer to the next trophic level. b. respiration, movement, and reproduction. c. producing inorganic chemical compounds. d. performing photosynthesis.
b. respiration, movement, and reproduction.
300
The repeated movement of water between Earth’s surface and the atmosphere is called...
the water cycle
300
Which ecological inquiry method is an ecologist using when he or she enters an area periodically to count the population numbers of a certain species? a. questioning c. experimenting b. observing c. experimenting d. modeling
d. modeling
400
The simplest grouping of more than one kind of organism in the biosphere is...
a community
400
An organism that uses energy to produce its own food supply from inorganic compounds is called a(an)...
Autotroph
400
What does an energy pyramid show that a food web and food chain does not?
It can show the amount of something available, such as organisms, energy, or biomass
400
Which of the following is NOT recycled in the biosphere? a. water b. nitrogen c. carbon d. energy
d. energy
400
True or False Biogeochemical cycling ensures that nutrients will be circulated throughout the biosphere.
True
500
What is Ecology?
The study of interactions among organisms and their physical or non-living environment.
500
Which of the following organisms does NOT require sunlight to live? a. chemosynthetic bacteria b. algae c. trees d. photosynthetic bacteria
a. chemosynthetic bacteria
500
A first level consumer is also called a(an)...
Primary consumer
500
The movements of energy and nutrients through living systems are different because...
energy flows in one direction and nutrients recycle.
500
What is an ecological model of the relationships that form a network of complex interactions among organisms in a community from producers to decomposers?
A food web
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