science

Plakortis edwardsi

Plakortis edwardsi is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Plakortis edwardsi rather than just read about it. In short: Plakortis edwardsi is a species of sea sponge in the order Homosclerophorida, first found in vertical walls of reef caves at depths of about 23 to 28 metres (75 to 92 ft) in the Caribbean Sea. This species has diods of a single category, with thick and S-shaped centres (measuring 110 to 128μm long); triods which are T-shaped (actines measuring 28–59μm long).

Key takeaways

Plakortis edwardsi belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Plakortis edwardsi to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Plakortis edwardsi from memory before moving on to harder problems.

Reference excerpt

Plakortis edwardsi is a species of sea sponge in the order Homosclerophorida, first found in vertical walls of reef caves at depths of about 23 to 28 metres (75 to 92 ft) in the Caribbean Sea. This species has diods of a single category, with thick and S-shaped centres (measuring 110 to 128μm long); triods which are T-shaped (actines measuring 28–59μm long). It is the only species of this genus exhibiting small diods (measuring 22–31μm long).

References

Further reading Willenz, P. "Five new species of Homoscleromorpha (Porifera) from the Caribbean Sea and re-description of Plakina jamaicensis." Journal of the Marine Biological Association of the United Kingdom 2 (2014). Domingos, Celso, Anaíra Lage, and Guilherme Muricy. "Overview of the biodiversity and distribution of the Class Homoscleromorpha in the Tropical Western Atlantic." Journal of the Marine Biological Association of the United Kingdom: 1-11. Cruz‐Barraza, José Antonio, Cristina Vega, and José Luis Carballo. "Taxonomy of family Plakinidae (Porifera: Homoscleromorpha) from eastern Pacific coral reefs, through morphology and cox1 and cob mtDNA data." Zoological Journal of the Linnean Society 171.2 (2014): 254–276.

External links "Plakortis edwardsi". The Encyclopedia of Life. WORMS

Worked examples

Example 1 — a first encounter with Plakortis edwardsi

Start with the simplest possible case. Write down what Plakortis edwardsi claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Plakortis edwardsi before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Plakortis edwardsi ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Plakortis edwardsi

In research: Plakortis edwardsi appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Plakortis edwardsi in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Plakortis edwardsi is common in secondary-school and first-year university syllabi. It links to neighbouring topics Animals described in 2014, Homoscleromorpha, Sponge stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Plakortis edwardsi outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Plakortis edwardsi in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Plakortis edwardsi means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Plakortis edwardsi out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Plakortis edwardsi in simple terms?

Why does Plakortis edwardsi matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Plakortis edwardsi?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Plakortis edwardsi.