1. List and define the levels of
organization in the
environment. (T1)
2. What is the difference
between an organism’s
habitat and it’s niche? (T1)
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3. List and define 2 abiotic
factors in an ecosystem. (T2)
4. List and define 2 biotic
factors in an ecosystem. (T2)
5. Describe how changes in
the abiotic and biotic factors
an ecosystem can affect the
carrying capacity of various
populations. (T3)
6. What role does competition
play in an ecosystem? (T3)
7. What is photosynthesis?
What group of organisms go
through this process? (T4)
8. What is the equation for
photosynthesis? (T5)
9. Once organisms go through
the process of photosynthesis,
What happens next to the
sugars/food? There are 3
possible outcomes. (T6)
10. Describe the process of
how organisms use stored food
produced through
photosynthesis (cellular
respiration). (T6)
11. What is the relationship
between cellular respiration
and photosynthesis? (T5 & T6)
12. Define the terms
predator/prey and give 2
examples of predator/prey
relationships. (T7)
13. Define the terms
parasite/host and give 2
examples of parasite/host
relationships. (T8)
14. How is a parasite/host
relationship different than a
predator/prey relationship?
How are they the same?
(T7 & T8)
15. Define symbiosis and list
the 3 types of symbiosis and
explain the difference
between them. (T8)
16. Describe the different roles
organisms play in an
ecosystem. (T9)
17. Give an example of a food 18. Explain the difference
chain and label the levels.
between a food chain and a
(T10)
food web? (T10)
19. What does an energy
pyramid show?
Draw an example of one.
Where is the least amount of
energy found? Most? (T11)
20. Give 2 examples of how
human activity can change a
population or potentially
cause irreversible effects on an
ecosystem. (T13)
2. Habitat is where an animal
lives.
Niche is the role animal plays
in the environment. Such as
their place in the food chain or
1. organism- a living thing
population- a group of the same species in
an area
community-all the populations that live
and interact with each other in a
particular place
ecosystem- all the living and nonliving
things that interact in a particular
environment
4. Abiotic factors are the
nonliving parts of an
ecosystem.
3. Biotic factors are the living
parts of an ecosystem.
wolves, trees
light, soil
6. Competition is the struggle
between two or more living
things that depend on the
same limited resource.
5. Carrying capacity is the
maximum size that a population
can reach in an ecosystem. This
depends on the amount of biotic
and abiotic factors present there.
8.
7. Photosynthesis is the process
producers (including plants)
use the make their own food.
water + carbon dioxide +
light energy
glucose (sugar) + oxygen
10. Cellular respiration is when
cells use oxygen to release
energy stored in sugars such as
glucose.
glucose (sugar) + oxygen
energy + water + carbon dioxide
9.
1. Some of the glucose builds
to make starch
2. They use it later when they
need energy
3. The starch supplies food for
animals that eat plants
12. Predator-an animal that
hunts other animals and eats
them
Prey-an animal that other
animals hunt and eat
bobcat/rabbit
bear/salmon
11. They are opposite
processes.
14. In a predator prey relationship
one is just eating the other and in
a parasite host relationship a
parasite often harms the host and
generally will keep the host alive.
It is two species interacting with
each other.
13. Parasite-an organism that
absorbs nutrients from the
body of another organism,
often harming it in the process
Host-an organism that another
organism lives off of
16. Producer-an autotrophic organism that
has the ability to make its own food. (plants)
Consumer-a heterotrophic organism that relies
on others for food. (animals)
Decomposer-a heterotrophic organism that
breaks down dead organisms and waste into
usable energy for plants. (bacteria, fungi)
15. Symbiosis-the interaction between
individuals from two different species
that live closely together
Parasitism-one species benefits and
one is harmed
Commensalism-one species benefits
and the other neutral
Mutualism-both species benefits
18. A food chain is a model of
a single producer and chain of
consumers and a food web is
a model that shows many
overlapping food chains in an
ecosystem.
17.
Leaf (producer)- caterpillar
(primary consumer)- bird
(secondary consumer)- hawk
(tertiary consumer)
20. Invasive species can take
over native species destroying
an ecosystem.
Deforestation leads to loss of
species habitats and
decreases populations.
19. Energy pyramid-a model
used to show the amount of
energy available to living
things in an ecosystem. The
most energy is at the bottom
and the least is at the top.