Diatoms (diatoms) are an example of __________.

The correct answer is Algae.

Key Points

• Diatoms are unicellular organisms that belong to the group of algae, specifically phytoplankton.
• They are characterized by their unique, intricately patterned, and rigid cell walls made of silica, called a frustule.
• Diatoms are a major component of marine and freshwater ecosystems, playing a key role in photosynthesis and oxygen production.
• They are considered primary producers in aquatic food chains, contributing significantly to the global carbon cycle.
• Diatoms are often used in scientific studies as bioindicators to assess water quality and environmental health.

Additional Information

• Algae:
  • Algae are a diverse group of photosynthetic organisms, ranging from microscopic unicellular forms (like diatoms) to large multicellular forms (like seaweeds).
  • They are found in a variety of habitats, including freshwater, marine, and terrestrial environments.
  • Algae produce a significant portion of the Earth's oxygen through photosynthesis.
• Frustule:
  • The silica-based cell wall of diatoms is known as a frustule, which provides mechanical protection and contributes to buoyancy.
  • The frustule consists of two overlapping parts, resembling a petri dish.
• Primary Producers:
  • Diatoms are primary producers, meaning they convert sunlight and carbon dioxide into organic matter, forming the base of aquatic food webs.
  • They are crucial for supporting higher trophic levels in aquatic ecosystems.
• Ecological Importance:
  • Diatoms contribute to approximately 20-25% of the global oxygen supply.
  • They play a role in carbon sequestration by transporting carbon to the deep ocean through the biological pump.