Characteristics and Classification of Living Organisms
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Characteristics of living organisms
SubtopicCharacteristics of living organisms under Characteristics and Classification of Living Organisms for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
Which life characteristic involves the removal of substances in excess of requirements, such as salts and water?
A.Respiration
B.Excretion
C.Nutrition
D.Reproduction
- 2.
Which process provides a permanent increase in the dry mass of an organism?
A.Growth
B.Respiration
C.Movement
D.Sensitivity
- 3.
What is the term for a change in the environment that an organism reacts to?
A.Response
B.Stimulus
C.Metabolism
D.Excretion
Download the worksheet for Characteristics and Classification of Living Organisms - Characteristics of living organisms to practice offline. It includes additional chapter-level practice questions.
Concept and use of a classification system
SubtopicConcept and use of a classification system under Characteristics and Classification of Living Organisms for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
Which of the following is the correct order of the classification hierarchy from largest to smallest group?
A.Kingdom, Class, Phylum, Order, Family, Genus, Species
B.Kingdom, Phylum, Class, Order, Family, Genus, Species
C.Kingdom, Phylum, Order, Class, Family, Genus, Species
D.Species, Genus, Family, Order, Class, Phylum, Kingdom
- 2.
Which body part is found in insects but NOT in arachnids?
A.Jointed legs
B.Exoskeleton
C.Antennae
D.Segmented body
- 3.
What is the most accurate way to determine how closely two species are related?
A.Comparing their body sizes
B.Comparing their habitats
C.Comparing their DNA base sequences
D.Comparing their colors
Download the worksheet for Characteristics and Classification of Living Organisms - Concept and use of a classification system to practice offline. It includes additional chapter-level practice questions.
Features of organisms
SubtopicFeatures of organisms under Characteristics and Classification of Living Organisms for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
In classification, a group of organisms that can reproduce to produce fertile offspring is called a:
A.Genus
B.Family
C.Species
D.Class
- 2.
Which group of animals is characterized by having four pairs of legs and no wings?
A.Insects
B.Myriapods
C.Arachnids
D.Crustaceans
- 3.
What is the main difference between the Prokaryote kingdom and the other four kingdoms?
A.Prokaryotes have no cell wall
B.Prokaryotes have no nucleus
C.Prokaryotes are all multicellular
D.Prokaryotes contain chloroplasts
Download the worksheet for Characteristics and Classification of Living Organisms - Features of organisms to practice offline. It includes additional chapter-level practice questions.
Dichotomous keys
SubtopicDichotomous keys under Characteristics and Classification of Living Organisms for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
When you reach the end of a branch in a dichotomous key and see a name in italics, what does that name represent?
A.The habitat
B.The genus and species name
C.The name of the scientist
D.The diet of the organism
- 2.
A key for identifying fish might use which of the following features?
A.Presence of fur
B.Position of the dorsal fin
C.Number of feathers
D.Presence of flowers
- 3.
What is the purpose of the numbers (e.g., 1, 2, 3) at the start of each line in a traditional dichotomous key?
A.To count the organisms
B.To guide the user to the next specific pair of statements
C.To show the difficulty of the question
D.To rank the organisms by size
Download the worksheet for Characteristics and Classification of Living Organisms - Dichotomous keys to practice offline. It includes additional chapter-level practice questions.