Solved Biological Classification How are organisms grouped ... - Free Printable

Let’s go step by step to answer each question based on the table and reading passage.

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Question 6: Using the envelope outline from Model 1, classify the full address by writing the appropriate information in the “Envelope” column in Model 2.

The “envelope” is a metaphor for taxonomic classification — just like an address goes from broad (country) to specific (first name), taxonomy goes from broad (Kingdom) to specific (Species).

So we fill the Envelope column with the taxonomic levels that match each row:

- Country → Kingdom
- State and Zip → Phylum *(Note: The text says “Phylum”, but the table shows “Chordata” under State and Zip — so we’ll use the term from the reading: Phylum)*
Wait — actually, looking at the table structure:

The leftmost column lists “address parts”:
- Country
- State and Zip
- Town
- Street name
- House No.
- Last name
- First name

And the right columns show taxa for Lion, Tiger, House Cat.

We are told to use the *envelope outline* from Model 1 (which isn’t shown, but implied by the analogy) to label what each row represents in taxonomy.

From the reading:
> In traditional Linnaean taxonomy the seven major taxonomic groups are (in order from least specific to most specific):
> Kingdom, Phylum, Class, Order, Family, Genus, Species

But the table has only 7 rows including headers? Let’s count the data rows:

Rows in table (excluding header):

1. Country → Kingdom
2. State and Zip → ?
3. Town → ?
4. Street name → ?
5. House No. → ?
6. Last name → ?
7. First name → ?

Looking at the values given for Lion:

- Kingdom: Animalia
- Then: Chordata → this must be Phylum
- Mammalia → Class
- Carnivora → Order
- Felidae → Family
- Panthera → Genus
- leo → Species

So matching:

| Envelope Part | Taxonomic Level |
|-------------------|-----------------|
| Country | Kingdom |
| State and Zip | Phylum |
| Town | Class |
| Street name | Order |
| House No. | Family |
| Last name | Genus |
| First name | Species |

✔ So for Question 6, you write those terms in the “Envelope” column.

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Question 7: Use the Linnaean taxonomic groupings to complete the third column of the table above.

Third column = “Taxa” column — which should list the general names of the taxonomic ranks.

Based on above:

Row-by-row:

- Country → Kingdom
- State and Zip → Phylum
- Town → Class
- Street name → Order
- House No. → Family
- Last name → Genus
- First name → Species

So fill the “Taxa” column with:

Kingdom
Phylum
Class
Order
Family
Genus
Species

*(Note: The table already has “Kingdom” filled in first row — so start from second row down.)*

Actually, looking again — the “Taxa” column is currently blank except for the first row which says “Kingdom”. We need to fill the rest.

So:

Under “Taxa” column:

Row 1 (Country): Kingdom ← already there
Row 2 (State and Zip): Phylum
Row 3 (Town): Class
Row 4 (Street name): Order
Row 5 (House No.): Family
Row 6 (Last name): Genus
Row 7 (First name): Species

✔ Done.

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Question 8: Which two of the three cats listed in Model 2 are most closely related? Explain your answer.

Look at their scientific names:

- Lion: *Panthera leo*
- Tiger: *Panthera tigris*
- House Cat: *Felis catus*

They share:

- Same Kingdom: Animalia
- Same Phylum: Chordata
- Same Class: Mammalia
- Same Order: Carnivora
- Same Family: Felidae ← all three!

Then:

- Lion and Tiger: same Genus → *Panthera*
- House Cat: different Genus → *Felis*

→ So Lion and Tiger are more closely related because they share the same Genus.

House Cat shares everything up to Family, but not Genus.

✔ Answer: Lion and Tiger are most closely related because they belong to the same genus (*Panthera*), while the house cat belongs to a different genus (*Felis*).

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Question 9: At which taxonomic level do the two cats you identified in Question 8 separate?

Lion and Tiger:

- Same: Kingdom, Phylum, Class, Order, Family, Genus
- Different: Species → *leo* vs *tigris*

So they separate at the Species level.

✔ Answer: They separate at the species level.

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Question 10: What is the most specific taxonomic grouping in which all three cats are the same?

All three:

- Kingdom: Animalia ✔
- Phylum: Chordata ✔
- Class: Mammalia ✔
- Order: Carnivora ✔
- Family: Felidae ✔
- Genus: Panthera / Panthera / Felis ✘ (not same)
- Species: leo / tigris / catus ✘

So the last level where all three are the same is Family (Felidae).

✔ Answer: Family

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Question 11: What is different about the way the genus and species names are written compared to the other taxa?

Look at how they’re written in the table:

For Lion:

- Genus: *Panthera* ← italicized or underlined? In print, it's often italicized. Also, note the asterisk (*) next to Panthera — probably indicating formatting rule.

In biology, the convention is:

- Genus and species names are written in *italics* (or underlined if handwritten).
- Genus is capitalized, species is lowercase.
- Other taxonomic levels (Kingdom, Phylum, etc.) are NOT italicized and usually capitalized as proper nouns.

Also, in the table:

- “Animalia”, “Chordata”, etc. — not italicized
- “Panthera”, “leo”, “tigris”, “catus” — these are in italics (as per standard biological notation)

Additionally, the genus name starts with capital letter, species with lowercase.

✔ Answer: The genus and species names are written in italics (or underlined), and the genus name starts with a capital letter while the species name is all lowercase. The other taxonomic levels are not italicized and are typically capitalized.

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Now, compiling final answers clearly.

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Final Answer:

6. Fill the “Envelope” column with:
- Country → Kingdom
- State and Zip → Phylum
- Town → Class
- Street name → Order
- House No. → Family
- Last name → Genus
- First name → Species

7. Fill the “Taxa” column (from top to bottom, after “Kingdom”) with:
Phylum
Class
Order
Family
Genus
Species

8. Lion and Tiger are most closely related because they share the same genus (*Panthera*), while the house cat is in a different genus (*Felis*).

9. They separate at the species level.

10. Family

11. Genus and species names are written in italics (or underlined), with the genus capitalized and species lowercase; other taxonomic levels are not italicized and are fully capitalized.