Biology Taxonomy and Classification Quiz

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Questions and Answers

What is taxonomy?

Taxonomy is the scientific study of how organisms are classified.

Where is the genus located in an organism's scientific name?

The first word in an organism's scientific name indicates the genus.

An organism whose cells contain nuclei is called a eukaryote.

True

Which scientist organized animals into groups according to observable features?

Carolus Linnaeus Signup and view all the answers

Which of the following is not one of the four kingdoms of eukaryotes?

Archaea Signup and view all the answers

What is the dense portion of some cells containing nucleic acids?

The nucleus Signup and view all the answers

Which of the following birds are more closely related: Parus bicolor, Tachycineta bicolor, or Parus atricapillus?

Parus bicolor and Parus atricapillus Signup and view all the answers

What is a species?

A species is a group of organisms that can mate with each other and produce offspring that can also mate and reproduce. Signup and view all the answers

What are the three domains?

Bacteria, Archaea, and Eukarya Signup and view all the answers

Name the six types of extremophiles.

Halophiles, Acidophiles, Alkaliphiles, Thermophiles, Psychrophiles, Barophiles. Signup and view all the answers

Name the four kingdoms in Domain Eukarya.

Fungi, Plantae, Animalia, Protista. Signup and view all the answers

Name the six kingdoms and which domain they belong in.

<ol> <li>Fungi (Domain Eukarya), 2. Plantae (Domain Eukarya), 3. Animalia (Domain Eukarya), 4. Protista (Domain Eukarya), 5. Eubacteria (Domain Bacteria), 6. Archaebacteria (Domain Archaea).</li> </ol> Signup and view all the answers

What are organisms in Domain Archaea?

The organisms in Domain Archaea are single-celled, prokaryotic, and they are extremophiles. Signup and view all the answers

Which domain(s) have a nucleus?

Domain Eukarya Signup and view all the answers

What is the definition of Acidophiles/Alkaliphiles?

Get their energy by using CO2 to convert hydrogen gas to methane gas, cannot live in O2, great decomposers, and enjoy extreme acidic or alkaline conditions. Signup and view all the answers

You have discovered an organism that is multi-cellular and autotrophic. Its cells each have a nucleus. To which kingdom does this organism belong to? Explain how you know.

This organism belongs to the Kingdom Plantae because plants are multi-cellular and autotrophic and have a nucleus. Signup and view all the answers

Which classification level(s) do all these organisms share?

Domain Eukaryota Signup and view all the answers

Name two characteristics that all the organisms in the Kingdom Animalia have in common with organisms in Kingdoms Fungi and Plantae.

They are multi-cellular, and they all have a nucleus. Signup and view all the answers

List which organism(s) is (are) least similar to the majority.

The organisms that belong in Kingdom Fungi and Plantae, such as the Mushroom and the Pink Daffodil. Signup and view all the answers

Which organism is most similar to a White-lipped Frog (Leptodactylus labialis)?

The Bottle Frog. Signup and view all the answers

What can a dichotomous key be used for?

A dichotomous key is a series of descriptions arranged in pairs that leads the user to the identification of organisms. Signup and view all the answers

Study Notes

Taxonomy

Taxonomy involves the scientific classification of organisms.
It plays a crucial role in understanding biological relationships.

Genus in Scientific Names

The genus is indicated by the first word in an organism's scientific name.

Eukaryotes

Organisms with nuclei in their cells are called eukaryotes.

Carolus Linnaeus

Scientist Carolus Linnaeus is recognized for grouping animals based on observable features.

Kingdoms of Eukaryotes

Archaea is not included in the four kingdoms of eukaryotes.

Nucleus

The nucleus is the dense part of a cell containing nucleic acids.

Parus bicolor and Parus atricapillus are closely related as they belong to the same genus, Parus.

Definition of Species

A species consists of organisms that can interbreed and produce viable offspring.

Three Domains

The three domains of life are Bacteria, Archaea, and Eukarya.

Extremophiles

Six types of extremophiles include:
- Halophiles: thrive in high-salt environments
- Acidophiles: survive in highly acidic conditions
- Alkaliphiles: live in extreme alkaline environments
- Thermophiles: prefer hot environments from 41 to 100°C
- Psychrophiles: inhabit extremely cold areas like the Arctic and Antarctica
- Barophiles: flourish under high-pressure conditions

Four Kingdoms in Domain Eukarya

The kingdoms are Fungi, Plantae, Animalia, and Protista.

Six Kingdoms and Their Domains

Fungi (Eukarya)
Plantae (Eukarya)
Animalia (Eukarya)
Protista (Eukarya)
Eubacteria (Bacteria)
Archaebacteria (Archaea)

Organisms in Domain Archaea

Archaea are single-celled, prokaryotic organisms often classified as extremophiles.

Domain with Nuclei

Domain Eukarya is the only domain containing organisms with nuclei.

Characteristics of Acidophiles/Alkaliphiles

They convert hydrogen gas to methane using CO2 for energy.
These organisms cannot survive in oxygen-rich environments as it is toxic to them.
They act as decomposers in environments with low oxygen, such as swamps.
They can inhabit intestinal tracts of cows, humans, and termites.
They thrive in extreme pH conditions, either acidic or alkaline.

Classification of Multi-cellular, Autotrophic Organism

A multi-cellular, autotrophic organism with nuclei belongs to the Kingdom Plantae due to its defining characteristics.

Common Classification Level

All organisms mentioned generally fall under the classification level of Domain Eukarya.

Common Characteristics in Kingdoms

Organisms in Kingdom Animalia share that they are multi-cellular and have nuclei with those in Fungi and Plantae.

Least Similar Organisms

Organisms from Kingdom Fungi and Plantae, such as Mushroom and Pink Daffodil, are least similar to others.

Most Similar Organism to White-lipped Frog

The Bottle Frog is the most similar organism to the White-lipped Frog (Leptodactylus labialis).

Dichotomous Key Usage

A dichotomous key consists of paired descriptions that guide users in identifying organisms based on characteristics.

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Description

Test your knowledge on the classification of organisms in biology with this quiz. Explore concepts such as genus, species definition, eukaryotes, and the contributions of Carolus Linnaeus to taxonomy. Perfect for students studying biological sciences.