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

Biology 11/12Warm 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.


What is an endospore?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


What is a saprobe (saprophyte)?


Prokaryotic cells video/discussion

Mini quiz

p.477 #1-6 due Wed

Define all bold terms in pages 471-477 due Wed


Write down everything you know about prokaryotic cells.


Prokaryotic cells video/discussion

Mini quiz

Poster assignment


No warm up sheet needed this week


Revisit old test

Video: Mythbusters “Fright Night” episode

https://www.youtube.com/watch?v=9YwPngnOyUE


What are the benefits and challenges of the “green revolution”? (see page 142)


Video Natural resources

Work time on assignments (packet due today)

Biology Assignments Due 10/25

• 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)


What are 3 things that humans can do to reduce CO2 in the atmosphere?


Standards test

After test:

-Read page 139-143…write a 3 sentences summary of each subsection (9 subsections). Due Friday


In ecosystems, why does just a small percentage of plant biomass get converted into animal biomass?


Practice test (mini-quiz)

Yesterday:Work time on study guide (you can use this on the test)

Practice question #1

• Which organisms are :• Primary Consumers (1st order)• Primary producers• Tertiary Consumers (3rd order)• Secondary Consumers (2nd order)

Grass

Grass Hopper

Woodpecker

Hawk


• Label each organism as one of the following categories:– herbivore– autotroph– carnivore

Grass

Grass Hopper

Woodpecker

Hawk

Practice Question #3

• 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?

How much energy/biomass is available at each level compared to the producers?

Practice Question #4

• From the food web above, place each organism into the correct category:

• -carnivores• -herbivores• -omnivores• -parasite• -autotrophs



• 5.) Describe 1 example (from nature) of each of the following relationships (discuss which organism(s) gain benefit/harm)

• Mutualism:• Commensalism:• Parasitism: • Competition• Predation


• 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)


Using the information in the diagram, explain 3 things humans could do to reduce CO2 in the atmosphere.


• Using the information from the diagram, describe 2 natural ways to add nitrogen in the soil without using man-made fertilizer.


Describe 1 density-dependent limiting factor for a population

and

Describe 1 density-independent limiting factor for a population.


Work time on study guide (you can use this on the test)

Yesterday: p.127 #1-5 p.135 #12-23 due Friday


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)


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

• 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)


Explain one way that humans are affecting ecosystems.


Video clips (cycles, carrying capacity, etc.)/ notes

p.80 #1-6


no warm up


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)


no warm up


Work time on project


no warm up


Work time on project


Why does the energy in food webs become reduced in higher trophic levels? (Why doesn’t it all get converted into biomass?)


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

29

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

30

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

31

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

• 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.


In ecology, what does it mean if an organism is a consumer?



Read page 63-73

Food web posters due Today

ECOLOGICAL PYRAMIDSand 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. More Energy

Less Energy

3 TYPES OF PYRAMIDS:

1. Pyramid of Biomass2. Pyramid of Energy3. 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 P

yram

id o

f Bio

mas

s

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

How can more people be supported on Earth when there is a limited supply of resources?

Human Population Growth

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.

• 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?


In ecology, what does it mean if an organism is a producer?



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 photosynthesis

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


What is the definition of ecology?


2nd attempt: Standards Test “Biological Molecules”

Read page 63-73

Food web posters due Thursday


What is the most difficult thing about tests?


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


What is the definition of a biological population?


Assembly assignment packet

Presentations/ Notes / Video: Oceans

.Resource Link about organ systems:

http://education-portal.com/academy/topic/physiology-i-the-circulatory-respiratory-digestive-excretory-and-musculoskeletal-systems.html

Biology Assignment Packet due 10/4/13

• 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)

Documents

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