Tree of Life Chapter 1 Lecture 2 Quiz

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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?

Domain Eukarya Signup and view all the answers

What is the general characteristic of Domain Archaea?

Prokaryotic cells Signup and view all the answers

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

Kingdom Animalia Signup and view all the answers

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

Presence of nuclei Signup and view all the answers

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

Scientific method Signup and view all the answers

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

Various aspects including biology, chemistry, and physics Signup and view all the answers

What distinguishes scientific knowledge from beliefs and opinions?

Relying on evidence and empirical data Signup and view all the answers

What is the basic unit of classification in taxonomy?

Species Signup and view all the answers

Which taxonomic category is the broadest?

Domain Signup and view all the answers

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

Prokaryote Signup and view all the answers

How are closely related species grouped in taxonomy?

By Genus Signup and view all the answers

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

Genus species Signup and view all the answers

How do taxonomists classify organisms besides naming them?

By evolutionary relationships Signup and view all the answers

Which domain includes single-cell organisms without a nucleus?

'Domain Bacteria' Signup and view all the answers

What does the term 'Prokaryote' refer to?

'Single-cell organism without a nucleus' Signup and view all the answers

'Homo sapiens' belongs to which taxonomic category?

'Species' Signup and view all the answers

What is the focus of taxonomy beyond just naming things?

Classification by evolutionary relationships Signup and view all the answers

What is a hypothesis?

A tentative explanation for one or more observations Signup and view all the answers

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

Independent variable Signup and view all the answers

What is the purpose of peer review in scientific publishing?

To evaluate the validity of methods, data, and conclusions Signup and view all the answers

What is the role of a control in an experiment?

To hold all variables constant Signup and view all the answers

Why is a hypothesis considered essential in scientific inquiry?

It provides a tentative explanation that can be tested Signup and view all the answers

What does a prediction in science typically describe?

An anticipated outcome based on a hypothesis 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?

Controlled variable Signup and view all the answers

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

By remaining open to new data and interpretations Signup and view all the answers