A
B
C
D
E
1
Trees, flowers, birds, humans and jellyfish are all examples of __________ factors
biotic
1
What is a population?
Members of the same species living in an area.
1
What do you call the purposeful cutting down of trees in a forest?
Deforestation
1
What is the carrying capacity of an ecosystem?
The largest population that an area can support.
1
An interaction in which one animal hunts and kills another for food is called:
predation
2
Name 2 Abiotic Factors in this ecosystem.
Water, Sand
Oxygen, Water
2
What are two things that can cause a population to decrease?
Increased death rate and emigration.
2
Name one example of a limiting factor in an ecosystem.
Food, Living space, Climate, Water
2
What is an adaptation?
The physical characteristics that allow organisms to live successfully in their environment.
2
The following are all considered ______________
1. Warning Coloring
2. Protective Covering
3. Mimicry
Prey Adaptations
3
Name 3 biotic factors that you might see at the zoo.
What is any living thing at the zoo?
3
What happened to the population of pheasants between point a and point b?
The population increased
3
What is random sampling used for?
To estimate the size of a population.
3
The role of an organism in their environment is called its _________________.
Niche
3
A population of wolves and moose rise and fall. Which one is the predator and which is the prey?
The wolf is the predator and the moose is the prey.
4
Movement of a biotic factor into an area is called:
Immigration
4
If you count 10 ants in a garden bed measuring 20 square centimeters, what is the population density of the ants?
0.5 ants per square centimeter
4
What is emigration?
The movement of organisms out of a area.
4
The struggle between organisms to survive as they attempt to use the same limited resources is called:
Competition
4
What are the three types of symbiosis?
Mutualism, Commensalism, Parasitism
5
Nutrients in soil from the decaying remains of an animal are considered: __________ factors.
biotic
5
What are the four levels of organization from smallest to largest?
organism, population, community, ecosystem
5
If the birth rate is > the death rate, the population will:
increase
5
A jellyfish has tentacles that contain a poison to paralyze fish. The jellyfish is a ____________ and the fish is the prey.
predator
5
A series of changes that occurs in an area where NO SOIL or organisms exist is called:___________
Primary Succession