Transcript Organisms and Their Environment

Organisms and Their Environment
Identify the Abiotic & Biotic Factors
in the picture below:
Temperature
Rainfall
Climatograms:
The graph shows a
biome’s average
monthly
temperature and
average monthly
precipitation data
on a single graph.
Rainfall (cm)
•
•
•
•
Temperature (celsius)
What is the determining factor:
Abiotic or Biotic?
Months
Flow of Energy:
Results when an Ecosystem Changes
Orca
Seals
Perch
Phytoplankton
Otters
Sea Gulls
Purple Sea Urchins
Kelp
Water Cycle
Carbon Cycle
Limited Resources
How many of these organisms
can live in the environment
represented in the graph?
Resource Availability
35
30
Number of Units
In an environment there is an
organism that requires 7
units of water, 4 units of
foods, and 2 units of space
to survive.
25
20
15
10
5
0
Why can the environment only
support the number of
organisms?
Water
Food
Space
1. Which statement illustrates a biotic factor interacting
with an abiotic factor?
a. A sea turtle transporting a pilot fish to a source of food.
b. A rock moving during an earthquake
c. A plant absorbs sunlight, which is used for
photosynthesis.
d. Wind cause waves to form on a lake.
2. The presence of a parasite in an animal will result in
a. the parasite purposely killing the host animal.
b. the host animal becoming ill from nutrients lost to the
parasite.
c. the parasite and the host animal both benefiting from
the relationship.
d. the host animal is unaffected by the parasitic
relationship.
3. Identify the group that consists of abiotic factors.
a. Temperature, light, precipitation, and soil
b. Individual, population, community, and ecosystem
c. Rock, soil, tree, and squirrel
d. Mountain lion, soil, and sunlight
4. The study of interaction between organisms and their
interrelationships with the physical environment is known as
a. Symbiosis
b. Biology
c. Ecology
d. Abiotic
5. Many different species of organisms interacting in a particular
environment are an example of a
a. Species
b. Biosphere
c. Ecosystem
d. Community
Grasses>Mice>Bobcat
1. The diagram above shows a food chain. If the population of
bobcats decreased, what would eventually happen to mice
population?
a. It would increase
b. It would decrease
c. It would remain constant
d. It would decrease then increase.
2. Which of the following statements regarding predator/prey
relationships is accurate?
a. There is no relationship between sizes of predator and prey
populations.
b. The predator population is dependent on the prey population for
survival.
c. Predator/prey relationships center around a carnivore eating a
defenseless herbivore.
d. If a prey species is depleted, the predator will automatically
switch to another prey species.
3. A resource that is competed for within a
population is a
a. Density-independent limiting factor
b. Density-dependent limiting factor
c. Ecological Succession
d. Carrying Capacity
4. Biodiversity in an ecosystem is a measure of
a. the number and types of organisms that live in
the ecosystem.
b. the climax community.
c. the limiting factors that control the population.
d. the predator/prey relationship.
5. The change in an ecosystem over time until
a stable stage is reached is known as
a. competition.
b. homeostasis.
c. transpiration
d. succession
6. An ecosystem will most likely remain stable
if
a. It has a high level of biodiversity
b. It has more predators than prey
c. Biotic factors decrease
d. Finite resources decrease