Biology Chapter 17 Flashcards
33 Questions
100 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

The science of classifying living things is called?

taxonomy

Taxonomy is defined as the science of?

grouping organisms according to their characteristics and evolutionary history

As we move through the biological hierarchy from the kingdom to species level, organisms?

become more similar in appearance

A mushroom is difficult to classify in Linnaeus's 2-kingdom classification system because?

<p>it doesn't seem to fit into either kingdom</p> Signup and view all the answers

Which of the following scientists developed the system of classifying by assigning them a genus and species name?

<p>Linnaeus</p> Signup and view all the answers

The scientific name of an organism is?

<p>the same for every scientist all over the world</p> Signup and view all the answers

Organisms in different genera?

<p>are all of the above</p> Signup and view all the answers

Kingdoms are divided into phyla, and each phylum is divided into?

<p>classes</p> Signup and view all the answers

The lowest hierarchy level in biological classification is the?

<p>species</p> Signup and view all the answers

Which of the following is the least inclusive classification group?

<p>species</p> Signup and view all the answers

Today, biologists classify organisms by their?

<p>all of the above</p> Signup and view all the answers

Which of the following are used in systematic taxonomy to classify organisms?

<p>All of the above</p> Signup and view all the answers

Nearly all single-celled eukaryotes that are either heterotrophic or photosynthetic belong to?

<p>Protista</p> Signup and view all the answers

Most multicellular, nucleated autotrophs that carry on photosynthesis belong to the kingdom?

<p>Plantae</p> Signup and view all the answers

Multicellular, nucleated heterotrophs that always obtain food by absorbing nutrients from the environment belong to the kingdom?

<p>Fungi</p> Signup and view all the answers

Aristotle classified plants on the basis of difference in their?

<p>stems</p> Signup and view all the answers

__ devised the 2-name system of naming organisms?

<p>Linnaeus</p> Signup and view all the answers

Biologists of Linnaeus's time classified every living thing as either plant or?

<p>animals</p> Signup and view all the answers

The evolutionary history of a species is called its?

<p>phylogeny</p> Signup and view all the answers

Organism 4 belongs to the Kingdom?

<p>Fungi</p> Signup and view all the answers

Eukaryotic organisms that lack specialized tissue systems are members of the kingdom?

<p>Protista</p> Signup and view all the answers

The domains of the 3-domain system of classification are Archaea, Bacteria and?

<p>Eukarya</p> Signup and view all the answers

The variety of organisms at all taxonomic levels is called?

<p>kingdom</p> Signup and view all the answers

Cladistics uses shared and __ characters to group taxa?

<p>derived</p> Signup and view all the answers

The Greek philosopher __ classified organisms as either plants or animals?

<p>Aristotle</p> Signup and view all the answers

Which of the following is not a consideration for Linnaeus?

<p>evolutionary</p> Signup and view all the answers

Don't use common names because?

<p>all of the above</p> Signup and view all the answers

2 organisms in the same class but different orders?

<p>same phylum</p> Signup and view all the answers

Same order but different family?

<p>all of the above</p> Signup and view all the answers

Biologists classify organisms by?

<p>all of the above</p> Signup and view all the answers

Phylla trees depict?

<p>evolutionary features</p> Signup and view all the answers

Who breaks down matter?

<p>fungi</p> Signup and view all the answers

Eukarya not plant or fungi?

<p>protista</p> Signup and view all the answers

Study Notes

Taxonomy Fundamentals

  • Taxonomy is the science of classifying living organisms based on characteristics and evolutionary history.
  • The classification hierarchy progresses from kingdoms to species, with organisms becoming increasingly similar in appearance.

Classification History

  • Linnaeus developed the binomial nomenclature system, assigning every organism a genus and species name.
  • Aristotle's classification system categorized organisms into plants or animals based primarily on stem differences.

Biological Classification Structure

  • Kingdoms are divided into phyla, which are further divided into classes.
  • The lowest level of biological classification is species, making it the least inclusive group.

Organism Characteristics and Kingdoms

  • Protista consists of nearly all single-celled eukaryotes, which can be heterotrophic or photosynthetic.
  • Plantae is the kingdom for multicellular, nucleated autotrophs that perform photosynthesis.
  • Fungi are multicellular, nucleated heterotrophs that absorb nutrients from their environment.

Modern Classification Techniques

  • Biologists use several criteria, including shared and derived characters, to classify organisms in systematic taxonomy.
  • The 3-domain system includes Archaea, Bacteria, and Eukarya.

Evolutionary Relationships

  • Phylogeny refers to the evolutionary history of a species, illustrating relationships and features shared among different taxa.
  • Cladistics groups organisms based on shared derived characters, highlighting their evolutionary lineage.

Naming and Identification Practices

  • The scientific names of organisms remain consistent globally, aiding in clear communication among scientists.
  • Common names are discouraged because they can vary by region and language, leading to confusion.

Eukaryotic Organisms

  • Eukaryotic organisms that do not fit into plants or fungi are classified under the kingdom Protista, encompassing diverse forms of life.

Environmental Roles

  • Fungi are crucial in breaking down organic matter, contributing significantly to nutrient cycling in ecosystems.

Additional Concepts

  • The diversity of organisms at all taxonomic levels is fundamental to understanding biological systems and ecological interactions.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Description

Test your knowledge on Chapter 17 of Biology with these flashcards. This chapter focuses on taxonomy and the classification of living organisms. Challenge yourself to understand how organisms are grouped and their evolutionary history.

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser