BIO 220 BYU EXAM 1 STUDY GUIDE QUESTIONS WITH
COMPLETE SOLUTIONS
Name the 4 Protista that affect humans and HOW they affect us -- Answer ✔✔ 1.
Giardia- contaminated cold water
2. African Sleeping Sickness- transmitted by Tsetse fly
3. Malaria- transmitted by mosquitos
4. Red Tide- Bloom of dinoflagellates that release neurotoxins
What is the life cycle of a trematode? (liver fluke) -- Answer ✔✔ 1. Eggs passed through
human feces
2. snail eat human feces with eggs
3. Cercariae leave snail and burrow into fish
4. Human eat undercooked fish
5. Metacercaria move to liver and become flukes
Life cycle of a cestode (tape worm) -- Answer ✔✔ 1. Human pass eggs through feces
2. cow eats grass with eggs
3. Human eats undercooked meat
