Unit 12 Classification Review Answers (8A, 8B, 8C) - A worksheet covering biological classification levels, scientific names, and taxonomy concepts.

You've uploaded a completed worksheet titled “Unit 12 Classification Review Answers (8A,8B,8C)”. Since you asked to “solve the problem and explain the solution,” I’ll go through each question, validate the answers provided, and explain *why* they are correct — turning this into a full educational review.

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🔢 Question 1: Fill in the correct levels of classification from largest to smallest.

✔ Answer Provided:
- DOMAIN
- KINGDOM
- PHYLUM
- CLASS
- ORDER
- FAMILY
- GENUS
- SPECIES

📌 Explanation:
This is the standard Linnaean hierarchy of biological classification, ordered from most inclusive (broadest) to least inclusive (most specific).

> Mnemonic: *Dear King Philip Came Over For Good Soup*
> (Domain → Kingdom → Phylum → Class → Order → Family → Genus → Species)

✔️ The answer is correct.

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🧬 Question 2: What two levels of classification make up the scientific name?

✔ Answer Provided: *Genus species*

📌 Explanation:
Scientific names follow binomial nomenclature, created by Carl Linnaeus. Each organism’s name has two parts:
- Genus (capitalized)
- species (lowercase)

Example: *Homo sapiens*

✔️ Correct.

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👤 Question 3: What is the scientific name for humans?

✔ Answer Provided: *Homo sapiens*

📌 Explanation:
Humans belong to the genus *Homo* and the species *sapiens*. This is universally accepted in biology.

✔️ Correct.

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🐘 Question 4: What Kingdom do humans belong to?

✔ Answer Provided: *Animalia*

📌 Explanation:
Humans are multicellular, heterotrophic, motile organisms with no cell walls — all characteristics of the Kingdom Animalia.

✔️ Correct.

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📜 Question 5: What language is the scientific name written in?

✔ Answer Provided: *Latin*

📌 Explanation:
Scientific names are traditionally derived from Latin (or sometimes Greek), because Latin is a “dead” language — it doesn’t change over time, ensuring consistency across cultures and centuries.

✔️ Correct.

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🌍 Question 6: Why do scientists use an organized classification system?

✔ Answer Provided:
> *So scientists around the world, despite language & cultural barriers, will be able to communicate precisely about the species they are studying.*

📌 Explanation:
Classification provides a universal language for biologists. Without it, common names like “robin” could mean different birds in different countries (American Robin vs. European Robin). Scientific names eliminate confusion.

✔️ Excellent, concise explanation.

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🐕 Question 7: Circle the genus name of the animal listed: *Canis familiaris*

✔ Answer Provided: *Canis* (circled)

📌 Explanation:
In binomial nomenclature, the first word is the genus. *Canis familiaris* = domestic dog.

✔️ Correct.

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🦊 Question 8: Circle the species name of the animal listed below: *Vulpes vulpes*

✔ Answer Provided: *vulpes* (circled)

📌 Explanation:
The second word is the species epithet. *Vulpes vulpes* = red fox. Note: It’s the same word — this is called a tautonym.

✔️ Correct.

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🧑‍🔬 Question 9: Who is known as the father of taxonomy?

✔ Answer Provided: *Carolus Linnaeus*

📌 Explanation:
Carl Linnaeus (Latinized as Carolus Linnaeus) developed the system of binomial nomenclature and hierarchical classification still used today. He’s rightly called the “father of taxonomy.”

✔️ Correct.

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📘 Question 10: Define taxonomy.

✔ Answer Provided:
> *the scientific system of naming and classifying organisms*

📌 Explanation:
Taxonomy is the science of naming, defining, and classifying groups of biological organisms based on shared characteristics.

✔️ Clear and accurate.

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🌿🍄 Question 11: How are plants and fungi similar? How are they different?

✔ Answer Provided:
> *Both are eukaryotic, have cell walls, most are multicellular, & reproduce either asexually or sexually. Plants have cell walls made of cellulose & are autotrophs while fungi have cell walls made of chitin & are heterotrophs.*

📌 Explanation:
This is a well-balanced comparison:

| Feature | Plants | Fungi |
|---------------------|-------------------------|---------------------------|
| Cell Type | Eukaryotic | Eukaryotic |
| Cell Wall | Cellulose | Chitin |
| Nutrition | Autotrophs (photosynthetic) | Heterotrophs (absorb nutrients) |
| Reproduction | Sexual & asexual | Sexual & asexual |

✔️ Thorough and accurate.

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🔍 Question 12: Circle the two organisms that are most closely related.

✔ Answers Provided:
a. *Ursus maritimus* and *Ursus arctos*
b. *Bufo quercicus* and *Bufo terrestris*
c. *Sternotherus minor minor* and *Sternotherus odoratus*

📌 Explanation:
Organisms sharing the same genus (*Ursus*, *Bufo*, *Sternotherus*) are more closely related than those in different genera.

- In (a): Both are bears — polar bear and brown bear.
- In (b): Both are toads in genus *Bufo*.
- In (c): Both are musk turtles — *S. minor* (a subspecies) and *S. odoratus*.

✔️ All circled pairs are correctly identified as being in the same genus → most closely related.

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## ✔ Final Summary:

All answers on this worksheet are correct and well-explained. The student demonstrates a solid understanding of:

- Taxonomic hierarchy
- Binomial nomenclature
- Scientific naming conventions
- Evolutionary relationships (via genus-level grouping)
- Key differences between major kingdoms (Plantae vs. Fungi)

This would earn a perfect score if graded!

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💡 Tip for Learning: Use flashcards or draw your own classification pyramids. Practice writing scientific names correctly (italicized, genus capitalized). Remember — shared genus = closer relationship.

Let me know if you’d like a printable version or quiz based on this!