The Hidden World of Algae
Unlock the fascinating science of seaweeds, scums, and microscopic phytoplankton. Learn how to identify common coastal and freshwater algae, spot them in everyday foods, and understand how they produce every second breath we take.
Like Duolingo, but for The Hidden World of Algae. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
A short one: 12 levels across 2 sections, about 24 minutes end to end, roughly 5 days at five minutes a day. It moves through Spotting Algae in the Wild and Algae in Everyday Life and the Biosphere. It starts from scratch.
Free forever · No credit card · iPhone & Android
Key ideas in The Hidden World of Algae
- Seaweeds are grouped into greens, browns, and reds based on color and pigments
- Color groups correspond to how deep each seaweed can grow to harvest sunlight
- Holdfasts only grip rock surfaces and do not absorb food or water like plant roots
- Seaweeds absorb all their nutrients and moisture directly through their fronds from surrounding seawater
- Air bladders are gas-filled pockets that float the seaweed toward the surface
- Floating upward keeps the fronds in sunlight when submerged by high tide
- Kelp belongs to the brown algae group
- Kelp grows at explosive rates up to two feet per day in cold, nutrient-rich coastal waters
- Kelp forms dense, multi-layered underwater forest habitats rather than isolated plants
- Red light fades within the first few meters of water, while blue-green light penetrates deepest
- Red algae possess specialized pigments that efficiently capture penetrating blue-green light
- Filamentous green algae form harmless, hair-like colonies around pond plants
- The trapped bubbles in the silky mats are harmless oxygen produced during photosynthesis
- Cyanobacteria often form an opaque, paint-like or pea-soup surface slick rather than fibrous strands
- Cyanobacteria are photosynthetic bacteria capable of producing toxins, not true eukaryotic green algae
- Warm, abundant sunlight fuels rapid multiplication of microscopic algae
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives The Hidden World of Algae the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
Why do seaweeds come in these distinct colors instead of all being green?
Get it right to open this lesson and 11 more in the app.
Where The Hidden World of Algae takes you
- 1
Spotting Algae in the Wild
- Identifying Seaweeds on a Shore Walk
- Decoding Freshwater Blooms and Pond Life
- 2
Algae in Everyday Life and the Biosphere
- Finding Algae on Your Plate and in Your Pantry
- The Microscopic Engines of the Planet
2 sections · 4 units · 12 levels. Built to play, not to enroll.
You pick the voice
The Hidden World of Algae is taught in the The Bestie style: your friend who just gets it. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start The Hidden World of Algae today.
Download Tomo, search The Hidden World of Algae, and play your first lesson in under a minute.