science Flashcards
The study of organisms and their environments
Ecology
A limited area in which living and nonliving things interact
Ecosystems
The environment with the nonliving factors in an ecosystems.
The abiotic community
The environment with the living factors in an ecossystems
biotic community
The area where an organism lives is often only a part of an ecosystem.
Habitat
A____includes all the factors in an organism’s environment.
Niche
The amount of _______ an area receives affects what kinds of plants will live in the ecosystem.
Light
The primary difference among many of the world’s ecosystems is the amount of_______they contain.
Water
The movement of water from the earth to the atmosphere.
Evaporation
Rain, snow, sleet and hail are all forms of______________
Precipitation
The water that moves along the surface is called_______
Runoff
precipitation that enters the soil is called________
Ground water
All the individuals from the same species in an ecosystem make up the
Population
___________Organisms manufacture their own food
Producer
__________organisms that cannot manufacture food
Consumer
The oxygen cycle and the carbon cycle use two major biological processes called
Photosynthesis and cellular respiration.
The two most common producers
Plants and algae
A______rhythm, or daily, rhythm is a change that takes place during one 24-hour period.
Circadian
Species were entering a period of activity.
Diurnal
_____Animals that sleep during the day and are awake at night
Nocturnal
_______ ________ is a change in the ecosystem that occurs with the change of season(usually once per year).
Seasonal rhythm
_______ factor: a factor in a habitat that limits the growth or existence
Limiting factor
a change that occurs regularly in an ecosystem
rhythm
Mutations are______not beneficial
harmful
a period of slowed life processes that permits certain animals to survive winter conditions
Hibernation
______ plants come back every year
Perennial
________ ________ internal mechanism that appears to control organisms’ daily rhythms
biological clock
For _________ the seeds are dormant during the winter and sprout in the spring.
Annuals
_______ _________ the continuous movement of water from the atmosphere to the earth and back to the atmosphere
water cycle
Inactive growth metabolism slows down
dormant
_____________ is a predictable series of changes that occur in biotic communities as they progress toward climax communities.
Succession
_______________ is an ecosystem that has a large amount of water.
Aquatic
Levels of organization in an aquarium
individual, population, community and ecosystem
