Department of Education - Schools Division of Cebu City, Module 6

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

Morphology

Classification

Systematics

Taxonomy (correct)

What physical attributes were used to classify living things in the past?

Genetic characteristics

Size, shape, color, and body structure (correct)

Behavior and habitat

Evolutionary relationships

What do you call biologists who classify organisms?

Systematists

Evolutionists

Biologists

Taxonomists (correct)

What is the term for the arrangement of living things in a hierarchical structure based on their evolutionary relationships?

Tree of Life Signup and view all the answers

What are the two main classification schemes mentioned in the passage?

5-Kingdom Scheme and 3-Domain Scheme Signup and view all the answers

What is the primary focus of the 3-Domain Scheme of classification?

Evolutionary relationships Signup and view all the answers

What is a characteristic that archaea and bacteria have in common?

They reproduce by binary fission Signup and view all the answers

What is the main difference between archaea and bacteria in terms of their cell composition?

Membrane composition Signup and view all the answers

Which type of archaea thrive in environments with great temperature extremes and extremely hot and acidic environments?

Thermoacidophiles Signup and view all the answers

What is a byproduct of metabolism produced by methanogens?

Methane Signup and view all the answers

Where are Korarchaeota archaea typically found?

All of the above Signup and view all the answers

What is the main reason why archaea are divided into a separate domain?

Because they have different cell wall and membrane composition Signup and view all the answers

What is the characteristic that defines a monophyletic group?

Shares a common ancestor Signup and view all the answers

Which of the following statements is true about species A and D?

They are an example of a polyphyletic group Signup and view all the answers

What is the term for the evolutionary history of a group of related organisms?

Phylogeny Signup and view all the answers

What is the characteristic that distinguishes domain Eukarya from domains Archaea and Bacteria?

Eukaryotic cells Signup and view all the answers

What is the term for a group of organisms that do not share a common ancestor?

Polyphyletic Signup and view all the answers

What is the purpose of phylogenetic trees?

To illustrate the evolutionary history of a group of organisms Signup and view all the answers

What is a characteristic of Domain C that distinguishes it from Domain A and Domain B?

Presence of a nuclear envelope Signup and view all the answers

Which domain is characterized by the presence of peptidoglycan in the cell wall?

Domain B Signup and view all the answers

What is the primary difference between Domain A and Domain B?

Type of RNA polymerase Signup and view all the answers

According to the classification of Carl Woese, what is the most general category of living things?

Domain Signup and view all the answers

What is the characteristic of an organism that belongs to the kingdom Plantae?

Multicellularity and ability to perform photosynthesis Signup and view all the answers

Which of the following domains is characterized by the ability to grow at temperatures above 100°C?

Some species in Domain B Signup and view all the answers

What is the primary purpose of a phylogenetic tree?

To show the patterns of descent among organisms Signup and view all the answers

What can be inferred from the branching sequence in a phylogenetic tree?

The patterns of descent among organisms Signup and view all the answers

Why may closely related organisms not resemble each other?

Because they have evolved at different rates Signup and view all the answers

What is the relationship between taxon C and taxon B in Figure 3?

They both evolved from a common ancestor Signup and view all the answers

What is the basis for classifying organisms in phylogenetic analysis?

Both morphological and molecular characteristics Signup and view all the answers

What are the three groups that can be identified in phylogenetic trees?

Monophyletic, paraphyletic, and polyphyletic Signup and view all the answers