When Under Attack, Ciliates Can Eject Dart-Like Protein Threads from Surface

question 80

Multiple Choice

When under attack, ciliates can eject dart-like protein threads from surface organelles called ____.

• A) vacuoles
• B) gullets
• C) trichocysts
• D) phagosomes
• E) alveoli

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Definitions:

Dinoflagellates

A phylum of microorganisms found in marine and freshwater environments, known for their ability to conduct photosynthesis and for some species, to produce bioluminescence and harmful algal blooms.

Alveolates

A group of protists characterized by the presence of alveoli, small sacs underneath their cell membranes.

Kelps

Large brown seaweeds that grow in underwater forests in shallow oceans, known for their high growth rate and the complex habitat they provide for marine life.

Brown Algae

A group of photosynthetic, multicellular marine algae, typically found in cooler waters, distinguished by their brown color due to fucoxanthin pigment.