
Monday 10.11 primary
Presentation
•
Biology
•
9th Grade
•
Practice Problem
•
Hard
+6
Standards-aligned
Alfred Allen
FREE Resource
43 Slides • 14 Questions
1
How much energy is available to a
primary consumer after eating a
producer?
🐢 100%
🐇 90%
😀 10%
🔊 0%
Ecological
Succession
Introduction to Succession
2
Multiple Choice
How much energy is available to a primary consumer after eating a producer?
100%
10%
1%
.1%
3
How much energy is available to a primary consumer after eating a producer?
😀 10%
4
Class Norms
5
Standard
SEV2. Obtain, evaluate, and
communicate information to construct
explanations of stability and change in
Earth’s ecosystems.
c. Construct an argument to predict
changes in biomass, biodiversity, and
complexity within ecosystems, in
terms of ecological succession.
6
Learning Target
I can explain how ecosystems
change over time.
https://vocab.com/join/3G3NNHZ
7
Who is your favorite
Hero and why?
Take 1 minute and share.
Please use the mic in Quizizz.(not optional)
Optional webcam(bonus XP)
●Think of some heroes and
what makes them special.
●Incredible Hulk-
●Massive rage strength that is
rarely matched in a
confrontation.
8
Video Response
Whho is your favorite hero, Marvel, DC, real hero, or other. Webcam is optional but please go on the mic and share

9
Today’s Hero
Moana
●Special ability- no super
powers, but is compelled to
go forward. She defeated the
Kai and restored balance.
10
Today’s villain
Te Kai
●Destroyer of the land.
●Can you give some real
examples of natural
occurrences that destroy
land.
11
Example
Rainstorms
●Do rainstorms destroy the
land?
12
Poll
Do rainstorms destroy the land
yes
no
13
Succession
Biomass
Biodiversity
Ecosystem complexity
Ecological succession
Primary succession
Secondary succession
Climax community
Terms brought to you by the
Count competition
The Count
competition
how many
terms can
you define.
14
Video Response
Te Kai is known as the destroyer of the land and water. What real world example is Te Kai depicting?

15
Ecosystems path to success
●The terrestrial (biomes)
ecosystems have three
general steps to success.
●These steps have events that
go into succession(order of
events before the next can
happen).
●
Natural
event that
destroys the
balance of
an
ecosystem
Life in the
area starts
to recover if
possible
Life is
completely
and
restored to
its original
glory
16
• What happens to the
balance of nature
when a catastrophic
event such as a
volcanic eruption
happens?
• Can or will anything
survive?
Step 1 Destruction
17
Growth
Plants start to grow.
How do you think the
seeds get there?
Step 2 Recover
18
Think
What would be the
definition of a climax
community?
Step 3 Community is restored
to its original glory
19
Multiple Choice
What is ecological succession?
A slow change in an environment
A change that happens quickly in an environment
A change in abiotic factors only
A state when an ecosystem doesn't change
20
Multiple Choice
21
There are some examples
of destructive forces in
nature
●What would you like to know
today
●Volcanic eruptions with
pyroclastic flow?
●Wildfires with devouring
movement?
●Tsunamis with unstoppable
power?
22
Multiple Choice
A glacier retreats and exposes bare rock. What will occur next?
The rock will turn into soil
A pioneer species will move into the area and begin to break down the rock into soil.
A forest will grow in the area
Grass will grow in the areaglag
23
Mount St. Helens
What do you see
happening after this
volcanic eruption?
24
Changes
What changes did you
see happen on Mount
St. Helens?
Use the vocabulary of
biomass, biodiversity,
and ecosystem
complexity.
Article
25
Two types of ecological succession
●
Primary succession-severe destruction
even removes soil.
Secondary succession-
not as severe, but still
wipes out the community
(almost) entirely.
26
Ecological Succession: Changes in an ecosystem that causes older
organisms (if present) to die out and new ones to move in.
The last picture is the climax community. What do you think the
definition of climax community is?
27
Biomes
When we talk about succession this is the picture you usually see.
Think about the organisms in different biomes. What do you see as
you follow the arrows?
28
Climax Community
Just like a food web,
each biome has
different organisms so
the climax community
will look different.
An ecosystem is always
developing to its most
complex and stable
state.
29
Activating shield
●We have been doing well on
this voyage and we came
across a flying basilisk and has
given us this challenge.
●We have 2 minutes to resolve
it.
●Show your Guardian, Mage,
and Healer wits now.
●Class craft points awarded for
those that master this foe.
Villain
stats:
Majestic
Fierce
Very difficult
Also
Has an
appetite for
spicy foods🌶️
30
Dragon-time Standard
review
Now it’s time to understand
the review for the progress
learning
This is an assignment that is
used in the study plan for
progress learning.
When you find a question you
got wrong you write about it.
Where is the questions found in progress
learning?
What standard do you use?
What do you write?
31
Hotspot
Which standard(3 correct choices) needs to be done?
32
Hotspot
Where to click to find the green dot challenge?
33
Hotspot
Where to click to find the green dot challenge?
34
This is an example slide for
the dragon timecard
●Notice there is an explanation
written in own words with the
race acronym.
●“I chose…”
●“The right answer was…
because….”
Teacher
example
35
Let’s practice together
●The next slide is going to have
this question with 30 seconds
●Thumbs up when your ready
☺
Class
example
36
Multiple Choice
Algae->Fish->seal->Bear->bacteria
A certain kind of fish in the ocean eats only algae. A seal eats this fish, and a bear eats the seal. When the bear dies, it is recycled by bacteria. The second consumer in this scenario is the
Responses
Algae
fish
Bear
seal
37
Good example
●Notice the question is
snapshot on the left.
●Notice an explanation is on
the right.
●I chose…
●The answer was…
●Because…
38
Dropdown
39
Bad example
●Notice the question is
snapshot on the left.
●Notice an explanation is on
the right.
●I chose…
●The answer was…
●Because…
40
Let’s brainstorm
●Independently(go to progress
learning with your Nearpod
assignment dragon-time cards
●And write down the
explanations for standards
that are not green.
Which standard
can be
skipped?
41

Sign in - Google Accounts
You can open this webpage in a new tab.
42
Ready for the 10% rule challenge?
Yes
No?
43
Ecosystems
●
They can function with
the combination of
biotic factors and
biotic factors working
together forever.
●
Can you remember
the example
ecosystem to support
this hypothesis?
Why did the teacher write
hypothesis?
Class craft xp
for answering
each review.
44
Multiple Choice
Which of these statements about a food web is true?
Matter is changed into various forms but the total quantity remains unchanged.
Matter is created at the start of a food web and destroyed in the end.
There are an equal number of producers and consumers.
The quantity of matter increases as the food web progresses from the producers to the consumers.
45
Food Web
When we looked at
food webs the more
complex a food web
was the more stable
an ecosystem was.
46
Food web Trivia
●The food web is disorganized.
●Circle he producers
47
Cats, in Minamata Japan, were the
first found to have high levels of
organic mercury in their bodies
which ultimately led to their death.
Soon the human population started
experiencing similar symptoms
from eating contaminated meat
from the dolphin population that
the fishing company had killed and
marked as healthy whale meat.
The chemical company Chisso had been dumping
methylmercury into the ocean and it started to
biomagnify in the marine organisms living in the
waters off Minamata.
Biomagnification
48
Biomagnification is the increase in
concentrations of harmful toxins, like
mercury, within organisms.
49
Which trophic levels are the most affected by
Biomagnification?
😀
🐇
🐢
🔊
✔
50
Why are the organisms higher up more affected by Biomagnification?
What trophic levels should you feed upon if you want to avoid the effects of biomagnification?
🔊Quaternary
Consumers
51
Exit ticket
Match the proper
order in the events of
succession
52
Reorder
Reorder the following,
53
54
Topic Submission
Now it’s time to make
sure your science fair
project is ready to start.
Use this time to complete
the google form.
Did you check with your
parent/guardian to make
sure you have everything
you need?
55
Lesson Summary
➢Ecological Succession involves a series of
changes in an ecosystem from either starting
a new community or replacing an older
community.
➢An ecosystem is always trying to develop to
its most complex and stable state.
➢Disturbances from succession events cause a
decrease in biodiversity, biomass, and
complexity within food webs.
➢As ecosystems progress through succession
stages biodiversity increases.
➢Biodiversity is the variety of life in the world
or in a particular habitat or ecosystem.
➢Biomass is the total mass of organisms in a
given area or volume.
56
Human Impact
Clear cutting
How does the clear cutting of
forests change that
ecosystem?
Think about changes in plant
and animal communities as
well as changes in biodiversity.
57
Prepare for the
week
Circle two questions you will
answer by Friday
How much energy is available to a
primary consumer after eating a
producer?
🐢 100%
🐇 90%
😀 10%
🔊 0%
Ecological
Succession
Introduction to Succession
Show answer
Auto Play
Slide 1 / 57
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