Module 6: Systematics Based on Evolutionary Relationships Quiz

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

Questions and Answers

What is the study of identifying, naming, and classifying living things in relation to other living things known as?

  • Taxonomy (correct)
  • Phylogenetic tree
  • Evolutionary relationships
  • Morphology

Why are classifications constantly updated and changed according to the text?

  • Biologists like to confuse others
  • Due to new data altering our understanding of evolutionary relationships (correct)
  • For no particular reason
  • Because there are no correct classifications

What does systematics study according to the text?

  • Nomenclature of organisms
  • Morphological changes in organisms
  • Evolutionary relationships among organisms (correct)
  • Physical attributes of organisms

How long ago did living organisms begin to diversify and adapt to almost every environment?

<p>3.7 billion years (D)</p> Signup and view all the answers

What do all living organisms share despite their enormous diversity?

<p>Common ancestry (C)</p> Signup and view all the answers

What was taxonomy traditionally based on according to the text?

<p>Morphology (C)</p> Signup and view all the answers

What type of data do systematists use to infer evolutionary relationships?

<p>Fossils, molecules, and genes (A)</p> Signup and view all the answers

Why is it generally agreed that grouping organisms according to shared evolutionary history is the most useful way to organize biological diversity?

<p>Due to common ancestry (B)</p> Signup and view all the answers

How are derived characters represented on a phylogenetic tree?

<p>Above the main lower line (A)</p> Signup and view all the answers

What is the purpose of constructing a phylogenetic tree of life?

<p>To classify organisms according to shared evolutionary history (B)</p> Signup and view all the answers

Which criterion is considered the most useful for organizing biological diversity?

<p>Shared evolutionary history (D)</p> Signup and view all the answers

What do systematists use DNA sequences for in classifying living things?

<p>To determine shared evolutionary history (B)</p> Signup and view all the answers

What does tree thinking, or phylogenetic thinking, help us with?

<p>Determining the branching evolutionary relationships between species (B)</p> Signup and view all the answers

In the Three Domain System, how are organisms primarily classified?

<p>Based on differences in ribosomal RNA structure (D)</p> Signup and view all the answers

What is the last universal common ancestor (LUCA)?

<p>A common ancestor cell from which all cells are believed to have evolved (A)</p> Signup and view all the answers

What is the main characteristic of organisms in the Archaea domain?

<p>Contain genes similar to both bacteria and eukaryotes (C)</p> Signup and view all the answers

What has genetic sequencing provided researchers with?

<p>A new way of analyzing relationships between organisms (B)</p> Signup and view all the answers

Flashcards

Taxonomy

Identifying, naming, and classifying living things in relation to other living things.

Why Classifications Change

New data constantly alters our understanding of evolutionary relationships.

Systematics

The study of evolutionary relationships among organisms.

Diversification Timeline

Living organisms began to diversify and adapt to almost every environment around 3.7 billion years ago.

Signup and view all the flashcards

Shared Ancestry

Living organisms share common ancestry.

Signup and view all the flashcards

Traditional Taxonomy

Tradionally taxonomy was based on morphology

Signup and view all the flashcards

Data for Systematics

Fossils, molecules, and genes are all data used to infer evolutionary relationships.

Signup and view all the flashcards

Useful Biological Organization

Grouping organisms according to shared evolutionary history.

Signup and view all the flashcards

Derived Characters

Derived characters placed above main lower line.

Signup and view all the flashcards

Phylogenetic Tree Purpose

Classify organisms by their shared evolutionary history.

Signup and view all the flashcards

Organizing Biological Diversity

Shared evolutionary history, due to common ancestry.

Signup and view all the flashcards

DNA in Classification

To determine shared evolutionary history.

Signup and view all the flashcards

Phylogenetic Thinking

Determining evolutionary relationships between species.

Signup and view all the flashcards

Three Domain System

Based on differences in ribosomal RNA structure.

Signup and view all the flashcards

Last Universal Common Ancestor (LUCA)

A common ancestor cell from which all cells are believed to have evolved.

Signup and view all the flashcards

Archaea Domain

Contain genes similar to both bacteria and eukaryotes.

Signup and view all the flashcards

Genetic Sequencing

A new way of analyzing relationships between organisms.

Signup and view all the flashcards

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser