If two organisms are in the same class, then which of the following must also be true?


This lesboy explores the classification device provided to recognize pets. Most youngsters are fascinated by animals and regularly have actually an pet that is a specific favorite, possibly even an animal the child has never before watched before. Children additionally prefer to order and kind things, and also this lesboy melds both of these interests.

You watching: If two organisms are in the same class, then which of the following must also be true?

This lesson is particularly designed to relocate quickly beyond the expertise level to high-level thinking. This lesboy can be taught to a whole classroom or provided as a self-directed expansion activity.

Learning ObjectivesAfter completing the lessons in this unit, students will certainly be able to:Kcurrently and also understand the salso levels of classification.Apply that understanding as they exercise classifying animals.Evaluate and compare the classification of animals.Devise a classification system for the objects in their dwellings.Create a new species and also classify it according to the values of classification.PreparationPublish the leschild plan on a color printer.Have accessibility to the Web for student(s).Gather provides including paper, pen or pencil, crayons, colored pencils and/or fine-tip markers.

Lesboy 1: Beginnings

Look at the pictures of these animals, then fill in the chart below: (We’ve offered you an example.)



Choose the 2 pets from your chart that you think are the majority of equivalent and also justify your option in one sentence.

Leschild 2: Organizing the animals — exactly how it happened


Back in the 18th century, a Swedish man called Carolus Linnaeus assumed it was essential to organize living points, and also he occurred a device to do just that. He began out interested in plants, however he ended up ordering all life as he knew it. We still use the significance of his system today. Scientists are constantly refining the mechanism based upon new understanding. Who knows? Maybe you will certainly make a adjust in just how pets are organized!

Putting animals in order choose this is referred to as taxonomy. The taxonomists — world who name animals — use a book referred to as the International Code of Zoological Nomenclature, or ICZN, to tell them the rules for classifying pets.

Linnaeus’s system has seven levels:


Every pet on the earth, down to the most microscopic creature you can imagine, can be classified according to this device. You have the right to remember the order the mechanism comes in through among the adhering to phrases. The initially letter of each word is the initially letter of the level of classification. Pick the one you prefer the finest and also practice saying it five times.

King Phillip, come out, for goodness’ sake!King penguins congregate on frozen ground sometimes.Keep ponds clean or frogs get sick.


Let’s look at each level and also an instance utilizing one common animal.

These levels start out extensively — that suggests the height levels have actually the a lot of pets, and also they gain narrower and also narrower as you go down. So, by the time you gain to the species, tbelow is just one pet in the group. You can imagine these levels as an upside-dvery own triangle.

KingdomTypically, scientists agree tbelow are 6 kingdoms. The animal kingdom (dubbed Kingdom Animalia) is simply among those. In situation you’re interested, the others are Achaebacteria, Eubacteria, Protists, Fungi and Plants. Originally, Linnaeus only established 2 kingdoms: plant and pet. Some researchers think that virsupplies should have their very own kingdom, however presently they are not had under this device.PhylumWithin the pet kingdom, the pets are divided right into more than 30 phyla (which is the plural of “phylum”). You can be interested in Phylum Chorinformation — it’s the one people and also all animals with backbones are in (perform you check out how “chordata” looks like the word “cord” — like spinal cord?). Phylum Arthropoda includes insects, spiders and various other animals through segmented bodies, like shrimp. Arthropods have actually their skeleloads on the outside of their bodies (think of the difficult shell of a lobster) and various other characteristics in widespread.ClassThe 3rd level of classification is course. For instance, Phylum Chordata has actually classes in it prefer birds, mammals (Mammalia) and reptiles.OrderThe next level, or rank, is order. Orders are smaller sized teams within the various classes. Lepidoptera is the order of moths and butterflies. Carnivora is the order within Mammalia that has the the majority of diversity in animal size.FamilyThe fifth rank of classification is household. (When you acquire to this rank, world sometimes disagree about which household an animal belongs to, so you might uncover that different resources tell you various points. This have the right to even happen with orders.) The family members for dogs is Canidae.GenusThis rank looks choose “genius,” doesn’t it? It’s the second-to-last rank, and also a genus may have just one or two animals in it. If pets are in the same genus, they are really carefully associated. In truth, you might not be able to tell them apart just by looking at them! When we compose the name of the genus, we capitalize it and also italicize it. For instance, the genus of dogs (and also wolves, too!) is Canis.SpeciesIf pets deserve to breed together effectively, they are a varieties. When an animal is dubbed by its scientific name, then that suggests it is being established by its genus and also species. We usage a lowerinstance letter and also italics for the species. The scientific name of dogs is Canis familiaris; however, the clinical name of wolves is Canis lupus.

Lesboy 3: Using what you’ve learned

Look back at your chart of the pets that you did in Lesboy 1. Let’s see exactly how they fit into what we’ve simply learned. Using that chart and also the chart on the last web page of this lesboy, answer the adhering to questions:

Why carry out you think we left Kingdom off of the chart? What kingdom does each of these animals belong to?Look at the course of the Chilean flamingo. All birds belong to that course. Do you view why we speak to points to do via airplanes “aviation?” Using that very same concept, and also looking at the order of the blue whale, have the right to you comprise a word that suggests “as massive as a whale?”Do you agree or disagree via this statement? If 2 animals are the exact same genus, then they must also be the very same family, order, course, phylum and also kingdom. Why did you make that choice?Why carry out you think that we had to be even more particular about the animals in this chart? Why can’t we simply put “bear”? Why did we have to say “grizzly bear?”Whales actually have actually suboundaries relying on whether they have actually teeth or baleen (comblike sieves that let water out but store their food in). Think around the name of the kind of physician who puts braces on people’s teeth. Now think around the name of the whale suborder Odontoceti. Do you think these are whales with teeth or whales through baleen?The household that equines belengthy to, Perissodactyla, suggests “odd toed.” Think about what a horse’s hoof looks prefer. Can you think of any various other pets not on this chart that could belengthy to that family?Using the chart above, write the scientific names of the cow, the flamingo and also the whale.CowChilean flamingoBlue whale

Did you put the genus initially through a resources letter? Good for you! When you watch a species’ name written, it will certainly be the genus and also the species, so the scientific name is periodically simply called "species." Sometimes the genus will certainly just be detailed as a funding letter via a duration after it, favor this: B. musculus.

Lesson 4: Working with your favorite animal

Go to the College of Michigan Museum of Zoology’s Animal Diversity Internet. In the search box, put in your favorite pet. Now create out its classification:

Kingdom: _______________Phylum: _______________Class: _______________Order: _______________Family: _______________Genus: _______________Species: _______________

Look on the chart of pets in the previous lesson. Are there any animals on the chart in the exact same phylum as your animal? Same class? Which animal do you think is the many carefully pertained to your animal?

Go back to the website and try to think of a couple of pets that would be extremely carefully pertained to the first animal you decided and also classified over. For instance, if you chose “tiger,“ attempt “lion“ and “panther.“ How close can you get? Can you get dvery own to the very same family? How about genus?

What animal could you discover that was closest to yours?

Lesson 5: Classifying your house

It’s not just pets that gain organized. Think about the grocery store; is the cereal in the very same location as the fruit? No, each kind of food is in its very own space. You have the right to easily tell how the grocery keep classifies its items for sale by looking at the indicators over the aisles.

Now think about your house. Imagine that you essential to classify eexceptionally item in your home. One means would certainly be to usage the principles that Linnaeus had actually — to begin out via wide categories and also get narrower. Let’s attempt it!

You are going to devise a seven-level device for classifying the things in your residence. If you gain confused at any type of time as you are doing this, you deserve to look at the examples listed later on in the lesboy.








First, let’s think around the broadest level. Is every little thing inside your house or execute you have some things outside, too? Maybe your first level requirements to be the Kingdom Inside and also the Kingdom Outside. If your household has various other areas that you store points you very own (choose a sepaprice home or a storage unit), that might be a 3rd kingdom. You may want to have actually kingdoms based on sides of the home or points for parental fees and points for kids. List your kingdoms.Next, you need the next level dvery own, phylum. Think about the things you have actually in one of your kingdoms. Can you think of a few categories you might divide them into? You may want to pick phyla based upon rooms (such as Phylum Living Room, Phylum Kitchen). You might want to select phyla based upon the items’ size or what they are made of. It’s as much as you. Choose just one kingdom from your list above and develop 3 phyla for it on the next web page (remember that phyla is the plural of phylum).Pick among the three phyla you developed over and also put it on the line listed below. Write the kingdom that phylum belongs to on the line beside Kingdom. Think around the phylum you picked. In your mind, break it dvery own into some categories. For instance, if your phyla were damaged dvery own by rooms, and you picked "Living Room" as your phylum, how might you divide the things in your living room into categories? Could you break them down by what you carry out through them? How about that provides them? How around what they are made of or where they are (wall, floor, closet)? Don’t try to make the categories too little, because you have actually numerous levels left! These categories are your classes. Think of three classes and list them on the diagram below:Now you are going to repeat this till you get to species. After class comes order (remember your sentence!), so choose one class from over, list in on the line below and also create 3 orders to go underneath it. Just save thinking around exactly how you could narrowhead that team of things also more. Remember to look at the instance at the end of this section if you obtain stuck. List the kingdom and phylum, also, so you have the right to save track.You only have actually a couple of levels to go! After order comes household, so pick one of your orders from above and perform the same thing you’ve been doing. Break it dvery own into smaller sized categories.You just have 2 levels left! You are nearly to a single item! Wow! Choose one family members from your list above and then break it dvery own into three smaller sized groups. Remember that the following level will certainly be an individual item, so be certain to make the genera (that’s plural for even more than one genus) incredibly narrow.You are at the last step! You are down to individual items! Choose a genus from your list over, and also name 3 different species, or items, within that genus.Now choose among your species listed over and also list its whole clinical classification from kingdom on down:Examples

Look below for concepts if you get puzzled. Tright here is an instance of how to break things down right into smaller sized categories, and then there is an instance of a scientific classification for an item. So that you don’t gain stuck trying to copy the instance, we’ve provided a college rather of a residence for the example.

Do you watch how the groups obtain smaller and smaller, finishing in a single item? That is what you are trying to carry out.

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Phylum:Students’ Supplies
Class:Language Arts
Order:Reading Center
Genus:Chapter Books
Species:"Tales of a Fourth Grade Nothing"

Here is an instance of how one level could be broken down right into several smaller sized categories. We’ll use the level household from above for our instance. Notice exactly how each genus is a smaller component of the family of Books.


Leskid 6: Create and also classify your very own animal

Imagine that you are a biologist studying animals in the wild. One day, while lying in your viewing spot, you watch an animal you have never before viewed before. You rush back to your tent and look via your encyclopedia of animals, flourishing even more and also more excited as you realize that you have actually discovered a brand-new species! As the discoverer of this brand-new species, you get the honor of naming it. Of course, being a great scientist, you will follow the classification mechanism in location. That implies that the just component of the animal’s name you will comprise yourself is the actual species name.

You go back to the Animal Diversity Net to uncover the closest animal you have the right to discover to the one you found. For instance, if the pet you have uncovered looks a lot prefer a panther, look up "panther" on the webwebsite.

So obtain a clear picture of your pet in your mind. Is it a mammal? a fish? a bird? This functions ideal if you create an animal that is similar to your favorite pet you decided previously, but yet slightly different. Draw a photo of your new pet.

List the animal’s classification. Remember, its classification need to be the very same as the animal you found that is virtually the exact same as this one. The just distinction will certainly be the species.

Look at several various other species within the genus so that you deserve to think of somepoint that makes your pet slightly different than any other species in the genus. For example, it could be a various shade or eat something various or live on a different continent.

What is your species’ distinguishing characteristic?

After you have actually classified your animal, including developing a varieties name, go earlier and also label your picture through one thing from each level that is distinctive to that classification. For example, if your animal is in phylum Chorinformation, attract a line to the animal’s backbone and write, "Phylum Chorinformation — backbone." Do this for at least 4 levels. Look earlier to the Animal Diversity webwebsite you used before to search each of those levels. It will certainly tell you what features are typical of that classification. You might likewise use an encyclopedia to aid you.

See the example listed below.



Books on Animals

Because animals almost universally interemainder kids, tright here are myriad books on them geared to young readers. Included below are a couple of high-top quality quantities that are distinguiburned as a result of high quality of illustration, comprehensiveness of product, interest to gifted learners or timeless nature.


Animal: The Definitive Visual Guide to the World’s Wildlife by David BurnieNational Geographic Encyclopedia of Animals by Karen McGheeThe Encyclopedia of Animals: A Complete Visual Guide by George McKayA Life in the Wild: George Schaller’s Struggle to Save the Last Great Beasts by Pamela Turner


Mr. Popper’s Penguins by Richard AtwaterThe Dr. Dolittle series by Hugh LoftingCharlotte’s Web, Stuart Little and also Trumpet of the Swan by E.B. White

Online Information:


Answers to Leschild 3: Using what you’ve learnedWhy do you think we left "Kingdom" off of the chart? What kingdom does each of these pets belong to?Kingdom was left off bereason all pets belengthy to Kingdom Animalia.Look at the class of the Chilean flamingo. All birds belong to that course. Do you watch why we contact things to carry out with airplanes "aviation?" Using that exact same idea, and looking at the order of the blue whale, deserve to you comprise a word that means "as significant as a whale?"Answers will certainly differ, however must include at leastern the root of "cetacean."Do you agree or disagree with this statement? If two animals are the same genus, then they have to additionally be the exact same family members, order, course, phylum and also kingdom. Why did you make that choice?Answers will differ, yet the correct answer is "Agree." The classification device is optimal down, so if the animal is the same as an additional at a lower level, they need to be in the very same higher levels.Why do you think that we had actually to be even more specific about the pets in this chart? Why can’t we just put "bear?" Why did we have to say "grizzly bear?"Again, answers will vary, but the key principle is that tright here is more than one species of bear.Whales actually have suboundaries depending upon whether they have actually teeth or baleen. Think around the name of the type of physician that puts braces on people’s teeth. Now think around the name of the whale suborder Odontoceti. Do you think these are whales via teeth or whales with baleen?Suborder Odontoceti are whales via teeth.Write the clinical names of the cow, the flamingo and also the whale.

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Cow: Bos taurusChilean flamingo: Phoenicopterus chilensisBlue whale: Balaenoptera musculusAnswers to Leschild 4: Working via your favorite animal

The correct classification will depend upon the animal preferred. Use either the Animal Diversity Internet or any type of encyclopedia to verify that the student has favored the correct classification.