biology

Las Vegas dace

Las Vegas dace is a biology 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 Las Vegas dace rather than just read about it. In short: The Las Vegas dace (Rhinichthys deaconi) was a species of freshwater ray-finned fish belonging to the family Leuciscidae, the shiners, daces and minnows. It was found only in the Las Vegas Valley in the United States.

Key takeaways

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

Reference excerpt

The Las Vegas dace (Rhinichthys deaconi) was a species of freshwater ray-finned fish belonging to the family Leuciscidae, the shiners, daces and minnows. It was found only in the Las Vegas Valley in the United States. It was declared extinct in 1986 by the International Union for Conservation of Nature.

Sources

Illustrations

Worked examples

Example 1 — a first encounter with Las Vegas dace

Start with the simplest possible case. Write down what Las Vegas dace claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, 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 Las Vegas dace 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 Las Vegas dace 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 Las Vegas dace

In research: Las Vegas dace appears in biology 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 Las Vegas dace 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: Las Vegas dace is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cyprinid fish of North America, Extinct animals of the United States, Fish described in 1984, so understanding it makes those chapters shorter.
In everyday life: Look for Las Vegas dace 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 Las Vegas dace in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Las Vegas dace 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 Las Vegas dace out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Las Vegas dace in simple terms?

Why does Las Vegas dace matter?

Because it connects several biology 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 Las Vegas dace?

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 Las Vegas dace.