Biology
11/12
Warm up:
Draw and name each shape of bacteria
below:
Today’s activities:
Introduction to online testing environment
Students log on to online testing environment
Students complete online practice test.
For those without log in: p.493 #1-11 for review of
concepts is the replacement assignment.
Biology
Warm up:
What is an endospore?
11/6
Today’s activities:
Bacteria video/discussion/Mini quiz
Due today:
-Warm up questions
-Notes
-Poster
-p.477 #1-6
-Define all bold terms in pages 471-477
Biology
Warm up:
What is a saprobe (saprophyte)?
11/5
Today’s activities:
Prokaryotic cells video/discussion
Mini quiz
p.477 #1-6 due Wed
Define all bold terms in pages 471-477 due Wed
Biology
11/4
Warm up:
Write down everything you know about
prokaryotic cells.
Today’s activities:
Prokaryotic cells video/discussion
Mini quiz
Poster assignment
Biology
10/31
Warm up:
No warm up sheet needed this week
Today’s activities:
Revisit old test
Video: Mythbusters “Fright Night” episode
https://www.youtube.com/watch?v=9YwPngnOyUE
Biology
10/25
Warm up:
What are the benefits and challenges of the
“green revolution”? (see page 142)
Today’s activities:
Video Natural resources
Work time on assignments (packet due today)
Biology
Assignments Due 10/25
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Warm up questions / Score sheet
Study Guide packet
P.127 #1-5 (periods 1 and 3 only…per 6 turned this in last week)
P.135 #12-23 (periods 1 and 3 only…per 6 turned this in last week)
Read pages 139-143 write a 3 sentence
summary of each subsection (9 subsections)
Biology
10/24
Warm up:
What are 3 things
that humans can
do to reduce CO2
in the atmosphere?
Today’s activities:
Standards test
After test:
-Read page 139-143…write a 3 sentences summary of
each subsection (9 subsections). Due Friday
Biology
10/23
Warm up:
In ecosystems, why does just a small
percentage of plant biomass get
converted into animal biomass?
Today’s activities:
Practice test (mini-quiz)
Yesterday:Work time on study guide (you can use this on the test)
Practice question #1
Hawk
Woodpecker
Grass Hopper
Grass
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•
•
•
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Which organisms are :
Primary Consumers (1st order)
Primary producers
Tertiary Consumers (3rd order)
Secondary Consumers (2nd order)
Practice question #2
Hawk
Woodpecker
Grass Hopper
Grass
• Label each organism as one of the following
categories:
– herbivore
– autotroph
– carnivore
Practice Question #3
How much
energy/biomass
is available at
each level
compared to the
producers?
• Explain why there is less energy/biomass stored
in each trophic level as you move “up” the
energy/biomass pyramid.
• Hint: Why isn’t it all converted into new
biomass?
Practice Question #4
•
From the food web above, place each organism into the correct category:
•
•
•
•
•
-carnivores
-herbivores
-omnivores
-parasite
-autotrophs
Practice question #5
Practice question #6
• 5.) Describe 1 example (from nature) of
each of the following relationships (discuss
which organism(s) gain benefit/harm)
• Mutualism:
• Commensalism:
• Parasitism:
• Competition
• Predation
Practice question #7
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•
Humans affecting ecosystems:
Choose one organism in this ecosystem to be harmed by a human action.
(hunting, pollution, habitat destruction, etc.)
•
Explain how other organisms will be affected by lack of competition,
lack of predation, etc. Which organisms are helped, which are hurt?
(include discussion of at least 2 other organisms in this ecosystem)
Practice question #8
Using the information in the diagram, explain 3
things humans could do to reduce CO2 in the
atmosphere.
Practice question #9
• Using the information from the diagram, describe
2 natural ways to add nitrogen in the soil without
using man-made fertilizer.
Biology
10/22
Warm up:
Describe 1 density-dependent limiting factor for
a population
and
Describe 1 density-independent limiting factor
for a population.
Today’s activities:
Work time on study guide (you can use this on the test)
Yesterday: p.127 #1-5
p.135 #12-23 due Friday
Biology
10/21
Warm up:
Choose a biological cycle and explain at
least 5 parts of the cycle and how they
are connected in the cycle. (you may
draw/label this if you wish)
Today’s activities:
Work time on review questions
p.127 #1-5
p.135 #12-23
PERIOD 6: Final day to type cycles project.
Biology Assignments Due
10/18/13
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Warm up sheet
Notes
P.80 #1-6
Page 127 #1-5 (6th period only)
Page 135 #12-23 (6th period only)
• Ecology project (due Friday 1,3 period)
Biology
10/18
Warm up:
Explain one way that humans are affecting
ecosystems.
Today’s activities:
Video clips (cycles, carrying capacity, etc.)/ notes
p.80 #1-6
Biology
10/17
Warm up:
no warm up
Today’s activities:
1,3 periods: Work time on project
Period 6: p.127 #1-5 and p.135 #12-23 due Friday
(6th period will have one more day of work time on
project on Monday)
Biology
Warm up:
no warm up
Today’s activities:
Work time on project
10/16
Biology
Warm up:
no warm up
Today’s activities:
Work time on project
10/15
Biology
10/14
Warm up:
Why does the energy in food webs
become reduced in higher trophic
levels? (Why doesn’t it all get
converted into biomass?)
Today’s activities:
Mini-quiz: review of last week’s topics
Notes + practice mini-quiz
Review Mini-Quiz 10/14
• 1. Define “primary producer”
• 2. Define “omnivore”
• 3. Define “detritivore”
• 4.Which level of the energy/biomass pyramid contains the most
energy/biomass?
• 5.) Which level of the energy/biomass pyramid contains the least
energy/biomass?
Community interactions
Community Interactions:
Symbiosis
• A close and permanent
association between
organisms of different
species
• Commensalism – a
relationship in which one
organism benefits and the
other is not affected
• Example: Barnacles on a
whale
29
Community interactions
• Mutualism – a relationship in
which both organisms benefit
from each other
• Example: Birds eating pest off a
rhino’s back
• Parasitism – A relationship in
which one organism benefits and
the other is harmed
• Example: Ticks on a dog
30
Community interactions
• Competition - a relationship
where both organisms compete
for the same energy source
• Example: a rabbit and a deer
competing for grass, plants
competing for light
• Predation - a relationship where
one organism preys upon another
• Example: a wolf hunting a rabbit
31
• Community interactions summary
Table 53.1
Notes Mini-Quiz 10/14
• 1. Give an example of organisms who engage in mutualism.
• 2. Give an example of organisms who engage in commensalism.
• 3. Give an example of organisms who engage in parasitism.
• 4. Give an example of organisms who engage in competition.
• 5. Give an example of organisms who engage in predation.
Biology
10/10
Warm up:
In ecology, what does it mean if an
organism is a consumer?
Today’s activities:
Notes + practice mini-quiz
Read page 63-73
Food web posters due Today
ECOLOGICAL PYRAMIDS
and the Transfer of Energy in
Ecosystems
Which animals are at each level?
What type of ecological niche do
they each belong to?
Ecological Pyramids:
graphs which
illustrate the
trophic levels in
a community.
Most ecological pyramids are large at
the base and narrow at the top.
This is because every time
that an organism is eaten by
the next trophic level, some
of the energy is lost as heat.
Less Energy
More Energy
3 TYPES OF PYRAMIDS:
1. Pyramid of Biomass
2. Pyramid of Energy
3. Pyramid of Numbers
Pyramid of Biomass:
• Illustrates the amount of biomass in each trophic level
– Biomass weight is determined after dehydration
• Shows the amount
of matter lost
between trophic
levels.
• Measured in Kg,
grams or pounds
Pyramid of Biomass
Pyramid of Biomass
Pyramid of Energy:
• Shows the energy available at each trophic level.
– The size of the blocks represents the proportion of
productivity
– Measured in Joules or Calories
Pyramid of Energy:
• Most of the energy available to the community is in
the 1st trophic level.
• Only 10-20% of the energy is available to the next
trophic level (≈ 90% lost)
Pyramid of Numbers:
• Illustration of the number of organisms at each
level
What kind
of Pyramid
is this?
Energy, the trophic
levels are
measured in
Kilocalories
Human Population Growth
How can more people be supported on Earth
when there is a limited supply of resources?
It depends on what they are eating…
Mini-Quiz 10/10
•
1. What does a biomass pyramid illustrate?
•
2. If a 150 pound animal ate nothing but plants, estimate how many pounds
of plant material it takes to build 150 pounds of animal biomass.
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3. If a 150 carnivore ate nothing but herbivores, estimate how many pounds
of plant material it takes to build 150 pounds of carnivore biomass.
•
4. Which category of organisms contain the most biomass on a biomass
pyramid?
•
5. Which category of organisms contain the least biomass on a biomass
pyramid?
Biology
10/9
Warm up:
In ecology, what does it mean if an
organism is a producer?
Today’s activities:
Notes + practice mini-quiz
Read page 63-73
Food web posters due Thursday
Food Chains
and Food Webs
What is a food chain?
• A food chain is “a sequence of
organisms, each of which uses
the next, lower member of the
sequence as a food source”
Important facts about food
chains
• In a food chain each
organism obtains energy
from the one at the level
below.
• Plants are called producers
because they create their
own food through
Primary Producers
• Primary producers are
“organisms capable of
producing their own food”
• We can also say that they are
photosynthetic, use light
energy.
Primary Producers
• Examples of primary producers
include algae, phytoplankton, and
large plants.
• Primary producers are eaten by
primary consumers (herbivores)
Important facts about food
chains
• Animals are consumers
because they cannot create
their own food, they must eat
plants or other animals to get
the energy that they need.
Four types of consumer
• Herbivores: animals that eat only plants.
• Carnivores: animals that eat only other
animals.
• Omnivores: animals that eat animals and
plants.
• Detritivores: Animals that eat dead
materials and organic wastes
Other Ways to Classify
Consumers
1. Primary Consumers: Herbivores3.
2. Secondary Consumers: Carnivores that
eat herbivores3.
3. Tertiary Consumers: Carnivores that eat
other carnivores3.
Mini-Quiz 10/9
• 1. 2 examples of producers
• 2. 2 examples of herbivores
• 3. 2 examples of carnivores
4. 2 examples of omnivores
• 5. 2 examples of detritivores
Biology
10/8
Warm up:
What is the definition of ecology?
Today’s activities:
2nd attempt: Standards Test “Biological Molecules”
Read page 63-73
Food web posters due Thursday
Biology
10/7
Warm up:
What is the most difficult thing
about tests?
Today’s activities:
Revisit Standards Test “Biological Molecules”
Video notes/ Ecosystem poster
Negative feedback
loops : Response
in which just the
right amount of
correction is
applied in the most
timely manner can
be very stable,
accurate, and
responsive
Biology
10/4
Warm up:
What is the definition of a
biological population?
Today’s activities:
Assembly assignment packet
Presentations/ Notes / Video: Oceans
.
Resource Link about organ systems:
http://education-portal.com/academy/topic/physiology-i-the-circulatory-respiratory-digestiveexcretory-and-musculoskeletal-systems.html
Biology Assignment Packet due
10/4/13
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Warm up 9/30-10/4
Warm up 9/23-27
“Organization of Living Things” worksheet packet
p.63 define vocabulary words
p.65 #1-5
Worksheet Packet (chapter 3)