ZOOLOGY 250 Final 2025/2026 Exam Questions and Answers | A+ Score Assured

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ZOOLOGY 250 Final 2025/2026 Exam
Questions and Answers | A+ Score
Assured



Protista (6) - 🧠 ANSWER ✔✔•KINGDOM


•Unicellular & Eukaryotic

Includes:

•Flagellate

•Sarcodine

•Sporozoans

•Ciliates


Group "Flagellates" (Protista) - 🧠 ANSWER ✔✔•Move via 1 or more flagella


•Divided into phytoflagellates & zooflagellates


Phytoflagellates (Protista - Flagellates) - 🧠 ANSWER ✔✔•Have chloroplasts


•Examples: Dinoflagellates, Euglena, Volvox, Diatoms



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Zooflagellates (Protista - Flagellates) - 🧠 ANSWER ✔✔•Lack chloroplasts


•Examples: Choanoflagellates, Trypanosoma, Giardia


Group Sarcodines (Protista) - 🧠 ANSWER ✔✔•Have pseudopodia, some with

skeletons

•Examples: Amoebas, Slime Molds, Foraminifera, Radiolarians


Group Sporozoans (Protista) - 🧠 ANSWER ✔✔•Apicomplexa


•Move in various ways

•All are parasitic & most produce spored

•Example: Plasmodium.


Group Ciliates (Protista) - 🧠 ANSWER ✔✔•Phylum Ciliphora


•Move via cilia, complex forms, large variety

•Examples: Parmecium & Stentor.


3 Methods of Heterotrophy in Protista - 🧠 ANSWER ✔✔•Phagocytosis: Amoebas


•Filtration: Choanoflagelates

•Englulfing (swallowing whole): Cilliates




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How do multicellular animals differ from colonial protists? (5) - 🧠 ANSWER

✔✔Multicellular animal cells


•Are not viable on their own

•Exhibit differentiation

•Are interdependent

•Communicate & work together in a coordinated way

•Form distinct body layers


3 Examples of Colonial Protists - 🧠 ANSWER ✔✔•Volvox


•Some Choanoflagellates

•Slime Molds

What are the similarities between collar cells of sponges & choanoflagellates? (3) -

🧠 ANSWER ✔✔•Flagellum with ring of microvilli


•Flagellum with vane

•Diplosome: 2 basal bodies as anchor structure to flagella

How many times has multicellularity arisen & in which groups? - 🧠 ANSWER

✔✔•5 Times



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•Green Plants

•Red Algae

•Brown Algae

•Fungi

•Animals


Key Traits of Metazoans (4) - 🧠 ANSWER ✔✔•Fully Multicellular


•Ability to move

•Collagen: versatile glycoprotein that functions in many different animal tissues

•Heterotrophy


Porifera Anatomy (7) - 🧠 ANSWER ✔✔•Not True Tissues (cellular level of

organization)

•No Mouth

•No Gut

•No Muscles

•No Organs

•No Circulatory System


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STATEMENT. ALL RIGHTS RESERVED