Scientific Classification
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Scientific Classification. Day One. S7L1- Students will investigate the diversity of living organisms and how they can be compared scientifically . a. demonstrate the process for the development of a dichotomous key.

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Scientific classification

Scientific Classification


Day one

Day One

S7L1- Students will investigate the diversity of living organisms and how they can be compared scientifically.

a. demonstrate the process for the development of a dichotomous key.

b. Classify organisms based on a six-kingdom system and a dichotomous key.


Scientific classification

***Bell Ringer***

  • NUTS & Bolts Activity C (10 minutes)

    Choose one of the items from the bag. Pretend it is something nobody has ever seen before. You want to describe it to someone on the phone. You cannot say “it’s a nail.” But you can say the shaft or stem is “shaped like a miniature pencil.”

    Draw your item in your Interactive Notebook and write your description (in complete sentences.)


Scientific classification

***activator***

  • NUTS & Bolts Activity A (15 min)

    Your group will be handed a bag with assorted nuts and bolts. Sort these objects into groups based on specific physical characteristics. Examples might be:

    Each object in this group…

  • has a hole in the middle or does not have a hole in the middle

  • has a threaded shaft or does not have a threaded shaft

  • has a four-sided head or a six-sided head

  • has a pointy tip or has a flat tip

  • has a rounded (mushroom) head or has a flat head.

  • has indented grooves on top or has no grooves on top

  • has indented grooves in a cross pattern on the top or has a single slot on the top

  • has a shaft is more than twice the width of the head or shaft is less than twice the width of the shaft.

  • has a rough, silver or gray coating or is smooth and silver with no coating


Scientific classification

  • Classification Notes One

  • Scientists classify living organisms into categories based mostly on their physical characteristics. The largest of these categories is the organization of Kingdom. The five kingdoms of living organisms from least complex to most complex are:

  • Kingdom Monera- bacteria and cyanobacteria

  • KindomArchaea- bacteria-like unicellular organisms that oftern inhabit extreme habitats.

  • Kingdom Protista- the simplest eukaryotic organisms. Most are single cell. Some live in colonies and are multicellular.

  • Kingdom Fungi- mushrooms, yeast, and molds. Can be single cell or multi-cellular.

  • Kingdom Plantae- the plant kingdom.

  • Kingdom Animalia- the animals


Scientific classification

Why we use Classification

Classification helps scientists characterize traits and specifics on organisms.

We use classification to put all of earth’s known organisms into group and families.

Dichotomous Keys help us to figure out what genus and species an animal falls under.

For example, if a new organism was discovered, a scientist would go through a Dichotomous Key to try to find out the subject’s kingdom, phylum, class, order, family, genus, and species.


Scientific classification

  • Classification makes everyday life easier by putting organisms in a useful system.

  • Classification helps us to group the organisms we live with every day.

  • Classification also lets us have a system for reference and will continue to help as we study the organisms around us.

http://www.youtube.com/watch?v=kKwOlAqQoLk&list=PL68043E5115509A40


Scientific classification

Each kingdom is broken down into further categories. To remember these categories you need to remember that

King Phillip’s Class Ordered his Family Genius to Speak.

We order you to speak, oh wise one.

Speak, oh wise one.

King Phillip

The Royal Family's Genius


Scientific classification

Kingdom

Phylum/Division

Class

Order

Family

Genus

Species


Scientific classification

An organism’s scientific taxonomic name (binomial nomenclature) is its Genus (capitalized) and its species (lower case.) Orangutans are Pongoabelii. Spider monkeys are Atelesaniscus. http://www.youtube.com/watch?v=2VVKynG3C1g


Scientific classification

-At what point in their taxonomy do apes, humans, and monkeys begin to differentiate?

-Which of the four animals listed are in the same Family?

-What is the scientific name for the gorilla?


Scientific classification

-What is the scientific name (binomial nomenclature) for the common house mouse?

-What is its species?

-Black rats and house mice are in the same___________ but are different ______.


Scientific classification

In the Plant Kingdom, plants are divided into Divisions rather than Phyla.

-These three plants are in the same ____________.

-Which of the two plants are the most closely related?

Tomatoes and potatoes because they are in the same genus.


Scientific classification

KingPhillip’s ClassOrdered his FamilyGenius to Speak.

Kingdom

Phylum

Class

Order

Family

Genus

Speak

Or if you are a plant… KingDavid’s ClassOrdered his FamilyGenius to Speak.


Practice questions

Practice Questions

The scientific name/classification of blacktail deer is Odocoileushemionus. What is its species?

A. Odocoileus B. hemionus C. animal

hemionus

2. The scientific name for a whitetail deer is Odocoileusvirginianus. What genus is this animal a member of?

A. OdocoileusB. virginianus C. animal

Odocoileus


Scientific classification

3. The species of animals listed below are all members of the same ________________________.

f. ALL of these. Kingdom, Phylum, Class, Order, and Family.

Mountain Lion (Panther) Jaguar (S. America) African Leopard

Kingdom:Animalia

Phylum:Chordata

Class:Mammalia

Order:Carnivora

Family:Felidae

Genus:Panthera

Species:P. onca

a. Kingdom b. Order c. Family d. Phylum e. Class f. ALL of these to the left


Scientific classification

4. Organisms that are in the same class will also be in the same_____________.

Genus

Phylum

Family

Species

5. Which of these is in the correct order?

phylum-class-order-species-kingdom-family-genus

kingdom-species-phylum-genus-order-class-family

kingdom-phylum-class-order-family-genus-species

Order-class-phylum-genus-species-kingdom-family


Scientific classification

6. Which of these species of animals are most closely related?

Mountain Lion (Panther) Bengal Tiger African Leopard

a. Panther & Leopardb. Tiger & Pantherc. Leopard & Tiger


Scientific classification

7. Which of these two animals are most closely related?

a. Kangaroo Rat & Voleb. Kangaroo Rat & Packrat c. Vole & Packrat


Scientific classification

7. Which order are these three animals in?

a. Animaliab. Chordatac. Mammaliad. Rodentia


Scientific classification

8. These animals are in the same ____________ but are in different _____________.

Mountain Lion (Panther) Bengal Tiger African Leopard

a. species, classes b. family, species c. kingdom, familiesd. kingdom, classes


Graded assignment

Graded Assignment

  • Bring in one of your stuffed animals with a taxonomical key. You must develop the key by searching for the taxonomy.


Scientific classification

Day Two


Bell ringer

Bell Ringer

What is the scientific name for our dear Speedy?

Pagonavitticeps or P. vitticeps

2. What is her genus?

Pagona

3. What is her species?

vitticeps

4. What is her Order?

Squamata


What kind of key cannot unlock a thing

What kind of key cannot unlock a thing?

A Dichotomous Key


Scientific classification

Dichotomous Keys

  • A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish.

  • "Dichotomous" means "divided into two parts". Therefore, dichotomous keys always give two choices in each step.


Scientific classification

Example of a dichotomous key…

Traditional format


Dichotomous key

Dichotomous key


Scientific classification

Guided Practice

Let’s Practice……..

Which bird is the Certhidea?

Which bird is the Platyspiza?

Which bird is the Geospiza?

Which bird is the Camarhynchus?


Scientific classification

G

U

I

D

E

D

P

R

A

C

T

I

C

E

Let’s Practice….. What is fish letter g? a?


Scientific classification

Cooperative Group Practice- Complete Norms ID in crews.

Answers to Dichotomous Key on Norms

A. Beverlus B. DallusC.Rajus D. Kentuckyus

E. Californus F. Walawala G. Dakotas H. Yorkius

REMEMBER- the objective is to work together to complete the task. Giving answers is to crew members is not acceptable. Help struggling crew members by showing them HOW to identify the Norm rather then by simply giving them the answer.


Scientific classification

Cooperative Group Practice- Complete Norms ID in crews.

Answers to Dichotomous Key on Norms

A. Beverlus B. DallusC.Rajus D. Kentuckyus

E. Californus F. Walawala G. Dakotas H. Yorkio

REMEMBER- the objective is to work together to complete the task. Giving answers is to crew members is not acceptable. Help struggling crew members by showing them HOW to identify the Norm rather then by simply giveingthem the answer.


Scientific classification

Opening/Closing-

Using your Pamishan Dichotomous Key homework sheet, identify this Pamishan.

Walk-thru example…

Broadus hairystarus


Scientific classification

Day Three


Dichotomous key independent practice

Dichotomous Key Independent Practice

Identify the fish using a dichotomous key. Teacher needs to hand out the dry erase markers and white boards.


Scientific classification

Now use the dichotomous key on your table to identify these fish 

  • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • Fish #1

    Two united dorsal fins

    10 spines

    90

    60

    Jaw hinge extends to just below the eye.

    30

    Noticeable scales.

    10

    Rock Bass (Redeye)

    Show Answers


    Scientific classification

    Fish #2

    Mottled pattern on (back) dorsal side, spots on sides.

    NO SPOTs on the caudal fin.

    90

    Scales NOT noticeable.

    No broad horizontal band.

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 60

    30

    10

    Brook Trout

    Show Answers


    Scientific classification

    Rounded dorsal.

    Scales NOT noticeable.

    Deeply

    Forked

    90

    Some black specks on the sides.

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 60

    30

    Channel Catfish

    10

    Show Answers


    Scientific classification

    Two separate dorsal fins.

    Concave forehead

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 90

    60

    30

    10

    Yellow Perch

    Show Answers


    Scientific classification

    Slightly

    Indented

    Caudal.

    90

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 60

    Bullhead Catfish

    30

    10

    Show Answers


    Scientific classification

    90

    Caudal fin not forked OR slightly indented AT ALL.

    Fully grown 5 inch adult……..

    60

    This is a Mad Tom catfish. They only grow a few inches in length. They are NOT on the key….

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 30

    10

    Show Answers

    Teacher may just use this as an example to illustrate shortcomings of most dichotomous keys.


    Scientific classification

    Scales noticeable

    Net or web pattern

    Body more than 4X as long as it is broad.

    90

    60

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 30

    10

    Chain Pickerel

    Show Answers


    Scientific classification

    90

    60

    30

    10

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • Show Answers

    American Eel


    Scientific classification

    90

    60

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 30

    10

    Bluegill

    Show Answers


    Scientific classification

    90

    60

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • Show Answers

    30

    This is a Redbreast. It is NOT on the key ;)

    10

    Teacher may just use this as an example to illustrate shortcomings of most dichotomous keys.


    Scientific classification

    United, but nearly separate.

    Mouth hinge extends past eye.

    90

    Largemouth Bass

    60

    More than 3X as long as it is broad.

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 30

    10

    Show Answers


    Scientific classification

    Scales noticeable.

    More than 4X as long as it is broad.

    90

    60

    Northern Pike

    30

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 10

    Show Answers


    Scientific classification

    Scales not visible.

    90

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 60

    30

    10

    Show Answers

    Rainbow Trout


    Scientific classification

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 90

    60

    30

    10

    Show Answers

    White Suckah…Sucker….


    Scientific classification

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 90

    60

    30

    10

    Show Answers

    White Crappie


    Scientific classification

    This is a Black Crappie (pronounce “Crop’-ee”) and it isn’t on the key…

    90

    60

    30

    10

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • Show Answers

    Teacher may just use this as an example to illustrate shortcomings of most dichotomous keys.


    Scientific classification

    90

    60

    30

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 10

    Show Answers

    Carp


    Scientific classification

    United

    Height: 5 in.

    Length: 17 in.

    90

    Hinge below eye

    60

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 30

    10

    Show Answers

    Smallmouth Bass


    Scientific classification

    Separated.

    90

    60

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 30

    10

    Walleye

    Show Answers


    Scientific classification

    90

    60

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • 30

    10

    Show Answers

    This is a Bowfin or “Mudfish,” and it isn’t on the key….


    Scientific classification

    This is a Blue Catfish….

    90

    • Anterior-front

  • Posterior-rear

  • Dorsal-top

  • Ventral-bottom

  • Elongated-stretched out

  • Concave-bowed in (like the mark in the grass if you drop a cannon ball)

  • Convex-bowed out

    • Barbels- whiskers

  • Caudal-tail

  • Dorsal is slightly pointed.

    60

    30

    10

    Show Answers


    Scientific classification

    Day Four


    Scientific classification

    Opening/Closing

    What tool is used to help identify and classify organisms?

    A dichotomous key.

    2. How many options are there for each number in this tool?

    two

    3. Use the Pamishandichtomous key

    to determine which Pamishan is shown here.

    This is number 10,

    Broadus emmus.


    Scientific classification

    Pamishan Creatures Activity One

    Independent Practice (OPTIONAL)

    -Each of you will be assigned a number for a Pamishan Alien and a dichotomous key (do NOT write on either one.) Use the dichotomous key to identify your Pamishan Alien.


    Scientific classification

    Pamishan Creatures Activity Two

    Independent Practice

    Identify the Pamishan Aliens.

    -Each of you will be assigned a number for a Pamishan Alien and a dichotomous key (do NOT write on either one.) Use the dichotomous key to identify your Pamishan Alien.


    Scientific classification

    Pamishan Alien Dichotomous Key answers

    Narrowusportus

    Broadus archus

    Narrowusplainus

    Broadus hairyemus

    Broadus hairus

    Broadus anderscus

    Narrowusmontanus

    Narrowusgeorgius

    Narrowusblankus

    Broadus emmus

    11. Narrowuscyclops

    12. Broadus hairystus

    13. Narrowusbeardus

    14. Broadus walter

    15. Broadus plainus

    16. Broadus kiferus

    17. Narrowusstarbops

    18. Broadus tritops

    19. Narrowuswolfus

    20. Narrowusfuzzus

    If time remains, finish the fish identification from yesterday OR, if that is done, move on to the salamander identification.


    Find salamanders key

    Find Salamanders Key


    Scientific classification

    Salamanders:

    Independent PRACTICE

    Use your handout to identify these salamanders

    Mudpuppy

    Siren

    1

    4

    Over 7 cm.

    5

    Spotted Salamander

    2

    Marbled

    Salamander

    Slimy

    Salamander

    Over 7 cm.

    3

    6

    Tiger Salamander


    Scientific classification

    Opening/Closing

    dichotomous key

    A __________________ is a tool used to help identify and classify organisms.

    2. What is this organism?

    This is number 1, Narrowus

    portus.

    Use the Pamishan key in the vinyl sleeve.

    Key will say spikes on left leg. That is YOUR left as you are looking at it.

    Use the salamanders key.

    3. What is this organism?

    This is a two-lined

    Salamander.

    Hind legs

    Less than 7 cm.

    No external gills


    Find arachnid dichotomous key

    Find Arachnid Dichotomous Key

    Quartermasters get group dividers.

    Use the designated dichotomous key to identify/classify the organisms. Record your answer on the clear-vue folder. DO NOT click on the links until AFTER identifying the organism.


    Scientific classification

    Microwhip Scorpion

    A


    Scientific classification

    • Segmented abdomen

    • No tail

    • Abdomen much larger than cephalothorax

    • Pedipalps much shorter than legs

    B

    Daddy Long Legs


    Scientific classification

    Scorpion

    C


    Scientific classification

    Pedipalps

    Wind Scorpion

    D

    Segmented abdomen.

    Abdomen larger than cephalothorax.

    Pedipalps about the same size as legs.

    No pincers on pedipalps


    Scientific classification

    Mite

    E

    -no segmented cephalothorax or abdomen.

    -Spines

    Size of a pencil point

    -

    Cephalothorax and abdomen join here


    Scientific classification

    F

    Whip spiders

    • Segmented abdomen

    • No tail

    • First leg

    http://www.youtube.com/watch?v=I7wKyV7jMJ4


    Scientific classification

    Tick

    G

    -no segmented abdomen or ceph.

    -no narrowing where abdomen and cephalothorax meet.


    Scientific classification

    -segmented cephalothorax

    -abdomen much smaller than cephalothorax

    Sea Spider

    H


    Scientific classification

    Abdomen NOT segmented

    Argiope

    I

    Abdomen (narrowing at waist)

    Some hair on cephalothroax but not on abdomen

    Cephalothorax

    tiny pedipalps


    Scientific classification

    J

    - NO segmented abdomen or cephalothorax

    -narrow “waist.”

    -pedipalps slightly shorter than legs

    Curved pedipalps

    Jumping Spider


    Scientific classification

    K

    Tarantula

    -Pedipalps straight

    No segmented abdomen or ceph.

    -Narrow waist


    Scientific classification

    pincers

    Whip Scorpion

    pedipalps

    -no stinger on tip of tail.

    -large

    L

    http://www.youtube.com/watch?v=1FFmnk9eFas


    Scientific classification

    Trapdoor Spider

    Thick, tight jaws

    M

    Plated cephalothorax

    pedipalps

    http://www.youtube.com/watch?v=7yJgPVxS5aI


    Scientific classification

    N

    Pseudoscorpion

    pedipalps


    Scientific classification

    Opening/Closing [Get Crew Folders. Today 1/15.) Answers only.)

    dichotomous key

    A __________________ is a tool used to help identify and classify organisms.

    2. What is this organism?

    Nornowalawala

    Use the Norns key in the vinyl sleeve.

    Use the salamanders key.

    3. What is this organism?

    Slimy Salamander

    Hind legs

    Less than 7 cm.

    No external gills


    Using the insect dichtomous key to identify the order of this insect

    Using the Insect Dichtomous Key to identify the order of this insect.

    • Quartermasters please gather-

    • Two dividers

    • Markers

    • Dich. Key folders


    Scientific classification

    Order Phasmatodea- Walking Stick

    Abdomen has more than 6 segments

    Abdomen does not “split” or fork and does not have any kind of tail.

    Using the Insect Dichtomous Key to identify the order of this insect.


    Scientific classification

    Using the Insect Dichtomous Key to identify the order of this insect.

    Eyes located on sides of head

    Order Thysanura- Silverfish.


    Closing review

    Closing/Review


    Scientific classification

    Clam Worm Soil Centipede Nightcrawler

    Kingdom Animalia

    Phylum Arthropoda

    Class Chilopoda

    Order Geophilomorpha

    Family Geophilidae

    Genus Achilophilus

    Species monoporus

    Which of these animals are most alike?


    Scientific classification

    Clam Worm Soil Centipede American Lobster

    Kingdom Animalia

    Phylum Arthropoda

    Class Chilopoda

    Order Geophilomorpha

    Family Geophilidae

    Genus Achilophilus

    Species monoporus

    Which of these animals are most alike?


    Using the taxonomic key to stream water animals to identify the following organisms

    Using the Taxonomic Key to Stream Water Animalsto identify the following organisms


    Scientific classification

    Use the Dichotomous Key for Stream Animals to Identify

    Mayfly Larva

    Single hook on end of each appendage (leg)

    Tails are “thin”, like hairs.


    Scientific classification

    Use the Dichotomous Key for Stream Animals to Identify

    All these long, pointy parts are NOT legs.

    These are legs

    Hellgrammite

    http://www.youtube.com/watch?v=aNuz2VkI-PU


    Scientific classification

    Use the Dichotomous Key for Stream Animals to Identify

    Damselfly Nymph

    Tails are “wide.”


    Scientific classification

    Use the Dichotomous Key for Stream Animals to Identify

    These are little hooks.

    Legs…3 on both sides.

    Caddisfly Larvae

    Emerging from sand tube.


    Scientific classification

    Use the Dichotomous Key for Stream Animals to Identify

    Cranefly Larvae

    Hmmm. I don’t see any legs here…or a head for that matter!


    Scientific classification

    Use the Dichotomous Key for Stream Animals to Identify

    Dragonfly Nymph

    These three short points are NOT “tails.” They are just short points..


    Use coral reef animal key

    Use coral reef animal Key


    Use coral reef animal key1

    Use coral reef animal Key

    Has spines, but too small to see here. Does not look like a rock or stone.

    It may have some tentacles, but they are few and usually not visible.

    Looks kind of like a fat worm, doesn’t it?


    Scientific classification

    Trumpet Triton


    Scientific classification

    I do have spines, but they are very short.

    Brittle Star


    Scientific classification

    I have lots of spines all over my body, but they are very short compared to the spines of my cousins.

    Heart Urchin


    Scientific classification

    Use Birds Dichotomous Key

    Masked Booby


    Scientific classification

    Black Noddy


    Scientific classification

    Red-tailed Tropic Bird


    Use cedar glade flowers key

    Use Cedar Glade Flowers Key

    Change answer six so that it says “6” petals instead of “5.”


    Scientific classification

    Price’s Wood Sorrell

    A “daisy-like” flower would be similar to this. Multiple, long, slender petals.


    Scientific classification

    Sunnybell Lily


    Scientific classification

    None of these flowers is yellow in color even though they have a yellow center.

    Blue-eyed grass

    A “daisy-like” flower would be similar to this. Multiple, long, slender petals.

    This color to the left is lavendar.


    Scientific classification

    Dichotomous Key

    Summative Assessment

    Use the appropriate dichotomous key to identify the organisms.

    (Separate PowerPoint)


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