Ecology is the science of
a. Plants
b. Relationships
c. Animals
d. Theory
b. relationships
100
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
b. An ecosystem
c. Food chain
d. A population
a. Food Web
100
Atmospheric nitrogen makes up ______ of the air.
a. 20%
b. 40%
c. 60%
d. 80%
80%
100
What type of biome encompasses the great state of Georgia?
Temperate deciduous forest
100
Science differ from other disciplines, such as history and the arts, because science relies on
a. facts
b. testing explanations
c. observations
d. theories
A. Facts
200
The lowest level of environmental complexity that includes living and nonliving factors is the
a. biome.
b. community.
c. ecosystem.
d. biosphere.
b. community
200
As you move up the food chain, the energy at each trophic level
a. Decreases
b. Increases
c. Stays the same
d. Doubles
a. decreases
200
What is the original source of almost all the energy in most ecosystems?
a. Carbohydrates
b. Sunlight
c. Water
d. Carbon
B. Sunlight
200
The desert and tundra are alike because they both have
A) extreme daily temperature changes
C) limited available water
B) large seasonal variation
D) sandy soils
C. Limited available water
200
In science, an educated guess is called a/an
A) observation
B) conclusion
C) hypothesis
D) question
C. hypothesis
300
_________ feed on dead animals while ________ breakdown the compounds of dead animals
a. Producers, consumers
b. Scavengers, decomposers
c. Consumers, producers
d. Decomposers, scavengers
B.
300
A snake that eats a frog that has eaten an insect that fed on a plant is a
a. first-level producer
b. first- level consumer
c. second-level producer
d. third-level consumer
d. third level consumer
300
Most of the earth's surface is covered with
A) land.
C) salt water
B) polar ice.
D) fresh water.
C. Salt water
300
Annual rainfall levels are low in this particular biome, and its climate can be characterized as having extremely high and dry temperatures.
a. Tundra c. Taiga
b. Desert d. Tropical Rainforest
b. Desert
300
In an experiment, the one variable that is changed is called the
A) independent variable
B) dependent variable
C) experimental variable
D) controlled variable
What is A. Independent variable
400
The lowest level of environmental complexity that includes living and nonliving factors is the
a. biome.
b. community.
c. ecosystem.
d. biosphere.
d. ecosystem
400
What percent of energy is lost as you move up the food chain?
What is 10%
400
Groundwater moves from the ground through plants and then back into the atmosphere through the process of
A) condensation.
C) run-off.
B) precipitation.
D) transpiration.
d. Transpiration
400
Cone-bearing trees (like pines, spruce and fir) grow best in areas where winters are long and cold. Large mammals like moose, elk and bear also live and thrive in these cold areas known collectively as the ________________ biome.
Taiga
400
In an experiment, the factor that we measure is called the
A) conclusion
B) dependent variable
C) controlled variable
D) independent variable
What is B. dependent variable
500
List the levels of organization in order from largest to smallest.