Chapter 16 Test Flashcards
Morning glories open in the morning and closet at night. This is an example of
circadian rhythm
All the brook trout living in Sideling Hill Creek are an example of a _________
population
An ecologist should consider these factors before introduction a new species into a different ecosystem
- how the new species will affect other organisms
- how other organisms will affect the new species
- how abiotic factors will affect the new species
- how the new species will affect the abiotic factors
Organisms that manufacture their own food and supply usable energy to other organisms
Producers
A period of inactivity in plants
dormancy
Describes organisms that are active at night
Nocturnal
Changes in an ecosystem that takes place once per year
season rhythms
Individual plants that can survive year after year
perennials
Changes in an ecosystem that takes place every 24 hours
Circadian rhythm
The internal clock that controls many organisms’ daily rhythms
biological clock
The ecosystem of a pond would include:
- sunlight
- Paramecium caudate
- the water temperature
Hibernation includes
- lowered body temperature
- slowed metabolism
- seasonal rhythms
Cellular respiration takes place in _________
all organisms
A chipmunk hibernating through the cold winter is an example of this
the abiotic environment affecting the biotic community
A factor in a habitat that restricts the growth or existence of an organism is known as this
limiting factor
These two major biological processes that drive carbon and oxygen cycles are
photosynthesis and cellular respiration
The abiotic environment of an ecosystem may contain all of these
- substrate
- water
- light
Plants that survive the winter only as seeds are ________
annuals
The study of organisms in their habitats
ecology
A limited area in which living and nonliving things interact
ecosystem
All the nonliving factors in an ecosystem
abiotic environment
All the living organisms in an ecosystem
biotic community
An area where an organism lives
habitat
An organism’s role or function in an ecosystem
niche
An ecosystem that has a large amount of water
aquatic
Decaying plant and animals materials
humus
The continuous movement of water from the atmosphere to the ground and back to the atmosphere
water cycle
One who studies the effects of outside factors on an environment
ecologist
Small plants and algae in the early stages of changes in the biotic community
pioneer species
Precipitation that enters the soil
groundwater
Migration and hibernation are to seasonal rhythm as nocturnal and diurnal are to _____________
circadian rhythm
One factor ecologists often have trouble determining the effect of ________ _______ on an ecosystem
outside factors
What plays an important role in the nitrogen cycle
Bacteria
The movement of water from earth to the atmosphere
evaporation
Biochemical cycles occur in
both aquatic ecosystems and biotic ecosystems
Species ______ adapt to their habitat by evolving new characteristics
do NOT
This is a limited area in which living and nonliving things interact. Examples would an aquarium, a mountain valley, or a pond
ecosystem
What an organism does. An example is an animal that chases another animal and eats it
niche
All the living organisms in an ecosystem
biotic community
