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 12 IGCSE.
Preview questions (no answers)
- 1.
Which characteristic allows an organism to adjust to changes in its surroundings?
A.Sensitivity
B.Respiration
C.Growth
D.Nutrition
- 2.
Which process is an example of excretion in plants?
A.Loss of water vapor from leaves
B.Production of seeds
C.Growth of roots towards water
D.Taking in carbon dioxide for photosynthesis
- 3.
What is the result of respiration in cells?
A.The creation of glucose
B.The release of chemical energy
C.The absorption of mineral ions
D.The removal of undigested food
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 12 IGCSE.
Preview questions (no answers)
- 1.
Organisms that are multicellular and must ingest (eat) other organisms for food belong to which kingdom?
A.Plantae
B.Animalia
C.Fungi
D.Prokaryote
- 2.
Which group in the hierarchy would contain multiple Families?
A.Genus
B.Species
C.Order
D.Sub-species
- 3.
What happens to the number of shared characteristics between organisms as you move down from Kingdom to Species?
A.The number of shared characteristics increases
B.The number of shared characteristics decreases
C.The number of shared characteristics stays the same
D.Shared characteristics are only found in Kingdoms
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 12 IGCSE.
Preview questions (no answers)
- 1.
Which organelle, found in plant cells, is used to identify them as autotrophic organisms during classification?
A.Mitochondrion
B.Ribosome
C.Chloroplast
D.Nucleus
- 2.
What is the main aim of biological classification?
A.To give every animal a pet name
B.To reflect evolutionary relationships between organisms
C.To group organisms by where they live
D.To organize organisms by their color
- 3.
Which of the following is a feature found only in the mammal group of vertebrates?
A.External ears called pinnae
B.An internal skeleton
C.Laying eggs with shells
D.Scales on the skin
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 12 IGCSE.
Preview questions (no answers)
- 1.
If a key asks if an organism has an 'exoskeleton', which large group of animals is being considered?
A.Vertebrates
B.Arthropods
C.Mammals
D.Amphibians
- 2.
Which level of classification is usually the goal of a detailed dichotomous key used in the field?
A.Kingdom
B.Phylum
C.Class
D.Species
- 3.
Which of these pairs represents a clear, objective choice for a dichotomous key?
A.1a. Animal is pretty; 1b. Animal is ugly
B.1a. Animal has wings; 1b. Animal lacks wings
C.1a. Plant is tall; 1b. Plant is short
D.1a. Leaf is large; 1b. Leaf is small
Download the worksheet for Characteristics and Classification of Living Organisms - Dichotomous keys to practice offline. It includes additional chapter-level practice questions.