Tree of Life Chapter 1 Lecture 2 Quiz

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Questions and Answers

What biological system is used to name organisms with a name composed of two terms?

  • Binomial nomenclature (correct)
  • Uninomial nomenclature
  • Monomial nomenclature
  • Trinomial nomenclature

Which domain consists mostly of unicellular organisms with prokaryotic cells?

  • Domain Bacteria
  • Domain Archaea (correct)
  • Domain Protista
  • Domain Eukarya

What is a key feature of organisms within Domain Eukarya?

  • Prokaryotic cells
  • Absence of nuclei
  • Multicellularity (correct)
  • Mostly unicellular

In which domain do most species fall as per genetic evidence?

<p>Domain Eukarya (B)</p> Signup and view all the answers

What is the general characteristic of Domain Archaea?

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

Which kingdom belongs to Domain Eukarya and consists of multicellular organisms?

<p>Kingdom Animalia (A)</p> Signup and view all the answers

What is the most significant difference between Domain Bacteria and Domain Eukarya?

<p>Presence of nuclei (A)</p> Signup and view all the answers

Which scientific approach involves using evidence to answer questions and test ideas?

<p>Scientific method (B)</p> Signup and view all the answers

What aspect of the natural world do scientists primarily focus on studying?

<p>Various aspects including biology, chemistry, and physics (C)</p> Signup and view all the answers

What distinguishes scientific knowledge from beliefs and opinions?

<p>Relying on evidence and empirical data (A)</p> Signup and view all the answers

What is the basic unit of classification in taxonomy?

<p>Species (A)</p> Signup and view all the answers

Which taxonomic category is the broadest?

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

What type of organism lacks a nucleus and membrane-bounded organelles in its cell?

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

How are closely related species grouped in taxonomy?

<p>By Genus (D)</p> Signup and view all the answers

What is used to denote the unique two-word scientific name of each species?

<p>Genus species (D)</p> Signup and view all the answers

How do taxonomists classify organisms besides naming them?

<p>By evolutionary relationships (A)</p> Signup and view all the answers

Which domain includes single-cell organisms without a nucleus?

<p>'Domain Bacteria' (A)</p> Signup and view all the answers

What does the term 'Prokaryote' refer to?

<p>'Single-cell organism without a nucleus' (D)</p> Signup and view all the answers

'Homo sapiens' belongs to which taxonomic category?

<p>'Species' (A)</p> Signup and view all the answers

What is the focus of taxonomy beyond just naming things?

<p>Classification by evolutionary relationships (B)</p> Signup and view all the answers

What is a hypothesis?

<p>A tentative explanation for one or more observations (A)</p> Signup and view all the answers

Which variable in an experiment is the factor that the investigator manipulates?

<p>Independent variable (D)</p> Signup and view all the answers

What is the purpose of peer review in scientific publishing?

<p>To evaluate the validity of methods, data, and conclusions (A)</p> Signup and view all the answers

What is the role of a control in an experiment?

<p>To hold all variables constant (D)</p> Signup and view all the answers

Why is a hypothesis considered essential in scientific inquiry?

<p>It provides a tentative explanation that can be tested (D)</p> Signup and view all the answers

What does a prediction in science typically describe?

<p>An anticipated outcome based on a hypothesis (A)</p> Signup and view all the answers

Which element is crucial to ensuring the best chances of detecting the effect of independent variables in an experiment?

<p>Controlled variable (D)</p> Signup and view all the answers

What is one way science remains self-correcting according to the text?

<p>By remaining open to new data and interpretations (A)</p> Signup and view all the answers

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