Lisenbee BIO182 Practical 1 2025/2026
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Trypanosoma levisi - 🧠 ANSWER ✔✔Euglenozoan
Microscopic, flagellated, parasitic, heterotrophic
Eco: Parasitic
Econ: Lives in blood of rats and transported through fleas: human diseases
Eulegena - 🧠 ANSWER ✔✔Euglenozoan
Flagellated; pellicle present; autotrophic or mixotrophic
Eco: primary producer and food for consumers in plankton
Econ: food for consumers in food chain
Diatoms - 🧠 ANSWER ✔✔Stramenopiles
Microscopic, autotrophic, cell wall of silica, pinnate or centric forms
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Eco: primary producer, food for consumers in plankton
Econ: diatomaceous earth has commercial uses
Brown algae - 🧠 ANSWER ✔✔Stramenopiles
Microscopic, autotrophic, pigments fucoxanthin and chlorophyll a present
Eco: primary producer
Econ: extract algin used in paint, toothpaste, ice cream and other food products
water molds (oomycetes) - 🧠 ANSWER ✔✔Stramenopiles
Body of mycelia, cellulose cell wall, saprophytic or parasitic
Eco: Live on dead or dying organisms, cycling organic matter
Econ: may be devastating to crops
Paramecia - 🧠 ANSWER ✔✔Aleveolates
Microscopic; single-celled; heterotrophic; alveoli under cell membrane
Eco: food for microscopic consumers in plankton and some animals
Econ: food for microscopic consumers
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Dinoflagellates - 🧠 ANSWER ✔✔Alveolates
Microscopic, single celled, autotrophic, cell wall in plates, two perpendicular
grooves with flagella
Eco: primary producer, food for consumers in plankton, can be toxic to fish
Econ: secrete toxins that kill fish in red tides
Plasmodium - 🧠 ANSWER ✔✔Alveolates
Complex life cycle alternating in anopheles mosquito and human
Eco: parasitic
Econ: causes malaria
Foraminiferans - 🧠 ANSWER ✔✔Rhizarians
Microscopic, ameboid, heterotrophic, thread-like pseudopodia, secrete calcium
carbonate tests
Eco: food for larger organisms in plankton
Econ: form limestone deposits in ocean floor
Radiolarians - 🧠 ANSWER ✔✔Rhizarians
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PRIVACY STATEMENT. ALL RIGHTS RESERVED