Ch 12: The Eukaryotes (Fungi, Algae, Protozoa, and Helminths.

How many phyla are represented in the following list of organisms?

Echinococcus

Cyclospora

Aspergillus

Taenia

Toxoplasma

Trichniella

• 1

• 2

• 3

• 4

Tags

NGSS.MS-LS4-2

Put these stages in order of development, beginning with the egg.

1. 1. Metacercaria

2. 2. Redia

3. 3. Adult

4. 4. Micracidium

5. 5. Cercaraia

• 5, 4, 1, 2, 3

• 4, 2, 5, 1, 3

• 2, 5, 4, 3, 1

• 3, 4, 5, 1, 2

If a snail is the first intermediate host of a parasite with these stages, which stage would be found in the snail?

1. 1. Metacercaria

2. 2. Redia

3. 3. Adult

4. 4. Micracidium

5. 5. Cercaraia

• 1

• 2

• 3

• 4

Fleas are the intermediate host for Dipylidium caninum tapeworm, and dogs are the definitive host. Which stage of the parasite could be found in the flea?

• cysticercus larva

• proglottids

• scolex

• adult

Which of the following statements about yeasts are true?

• Yeasts are fungi

• yeasts can form pseudohyphae

• Yeasts reproduce asexually by budding

• Yeasts are facultatively anaerobic

• All of the above

Which of the following events follows cell fusion in an ascomycete?

• conidiophore formation

• ascus opening

• ascospore formation

The definitive host for Plasmodium vivax is

• human

• Anopheles

• a sporocyte

These are obligate intracellular parasites that lack mitochondria.

• Apicomplexa

• ciliates

• dinoflagellates

• Microsporidia

These are nonmotile parasites with special organelles for penetrating host tissue.

• Apicomplexa

• ciliates

• dinoflagellates

• Microsporidia

These photosynthetic organisms can cause paralytic shellfish poisoning.

• Apicomplexa

• ciliates

• dinoflagellates

• Microsporidia