Biology 0610 · IGCSE
Concept and uses of classification systems
100 practice questions on Concept and uses of classification systems, with worked solutions and instant marking.
Which of the following gives a correct name for an organism in the binomial system?
Feb/March 2016
Which of the following gives a correct name for an organism when the binomial system is used?
Feb/March 2016
The diagram illustrates a leaf. Use the key to identify which plant the leaf comes from.
Feb/March 2016
The diagram illustrates a section of the classification of the animal kingdom and gives one example of each group. Which pair of animals is shown by the classification to share the most recent common ancestor?
Feb/March 2017
Define the biological term species.
Feb/March 2017
The diagram illustrates part of a flowering plant. Using the key, identify this plant. 1 three petals $\rightarrow$ move to 2 more than three petals $\rightarrow$ move to 3 2 leaves longer than they are wide $\rightarrow$ A leaves wider than they are long $\rightarrow$ B 3 leaves are parallel-veined $\rightarrow$ C leaves that are not parallel-veined $\rightarrow$ D
Feb/March 2018
The diagram illustrates a section of a flowering plant. Use the key to identify this plant. 1 three petals lead to 2 more than three petals lead to 3 2 leaves longer than they are wide A leaves wider than they are long B 3 leaves parallel-veined C leaves not parallel-veined D
Feb/March 2018
Fig. 1.1 is a branching key for identifying different species of bacteria. Fig. 1.2 presents six different species of bacteria. Use the key to identify the six different species of bacteria. Place the letters on the lines in Fig. 1.2.
Feb/March 2018
What is the correct method for naming a species by using the binomial system?
Feb/March 2019
The diagram illustrates a pea pod, which counts as a fruit. Apply the key to identify the fruit. 1 sepals drop off immediately after the flower is fertilised \;\;\; go to 2 sepals do not drop off immediately after the flower is fertilised \;\;\; go to 3 2 pod has fewer than four seeds \;\;\; A pod has more than four seeds \;\;\; B 3 fruit breaks open to release several seeds \;\;\; C fruit breaks open to release only one seed \;\;\; D
Feb/March 2019
What is one correct method of naming a species with the binomial system?
Feb/March 2019
What kind of organism is MRSA?
Feb/March 2019
In the binomial naming system, the Arctic fox is named $\text{Vulpes lagopus}$. Which row is correct?
Feb/March 2020
In the binomial naming system, the Arctic fox is named $\textit{Vulpes lagopus}$. Which row is the correct one?
Feb/March 2020
Fig. 1.1 illustrates six reptile species.
Feb/March 2020
Which species is able to breed with $\textit{Prunella vulgaris}$ in order to produce fertile offspring?
Feb/March 2021
Which species is able to interbreed with Prunella vulgaris and produce fertile offspring?
Feb/March 2021
Which two components make up the scientific name of an organism?
Feb/March 2023
What is used as a basis for classification?
Feb/March 2023
The diagram illustrates a flowering plant. A key may be used to identify the plant. Which letter in the key matches the flowering plant in the diagram?
Feb/March 2024
Fig. 2.1 displays a section of a strawberry tree.
Feb/March 2024
A domesticated llama is given the scientific name $\text{Lama glama}$. A domesticated sheep is given the scientific name $\text{Ovis aries}$. What is the genus name of the llama and the species name of the sheep?
Feb/March 2025
The evolutionary relationships among four bacterial species, P, Q, R and S, were compared. • Species P and Q share a more recent common ancestor than either one does with species R. • Species S evolved recently from species P. Which species has DNA base sequences that are least similar to those of the other three bacterial species?
Feb/March 2025
The diagram depicts an arthropod. Which group is it classified in?
Feb/March 2025
What term is used for a group of individuals capable of reproducing to produce fertile offspring?
May/June 2016
Refer to the key to identify the animal shown in the diagram.
May/June 2016
The scientific name of a rat is Rattus rattus. What do the two parts of this name denote?
May/June 2016
The diagram depicts a bird that lives close to rivers. Use the key to identify the bird shown in the diagram.
May/June 2016
The table displays the scientific names and the common names for four plants. Althaea officinalis - marsh mallow Hottonia palustris - water violet Viola palustris - marsh violet Viola tricolor - wild pansy Which word in their names indicates that two of the plants have the highest number of features in common?
May/June 2016
What term is used for a group of individuals able to reproduce and produce fertile offspring?
May/June 2016
Refer to the key to identify the animal in the diagram.
May/June 2016
The diagram depicts an animal. Which animal is it? 1 animal with a vertebral column ................................ vertebrate animal with an exoskeleton ................................ go to 2 2 no distinct head, thorax and abdomen ........................ A distinct head, thorax and abdomen ........................ go to 3 3 eye takes up less than one third of the head ................. B eye takes up more than one third of the head ................. go to 4 4 wings are wider than their length .......................... C wings are longer than their width .......................... D
May/June 2017
The diagram depicts an animal. Use the key to identify which animal is shown in the diagram.
May/June 2017
Fig. 7.1 displays six leaves.
May/June 2017
Fig. 1.1 presents five complete leaves taken from different trees. They are labelled A, B, C, D and E. The diagram is not drawn to scale. Use the key to identify the leaves shown in Fig. 1.1 and record the answers in Table 1.1.
May/June 2017
The diagram depicts an animal with the scientific name $\textit{Falco peregrinus}$. What species is it classified in?
May/June 2018
The diagram depicts a flowering plant. Use the key to identify the plant.
May/June 2018
The diagram depicts an animal with the scientific name $\text{Falco peregrinus}$. Which species is it classified as belonging to?
May/June 2018
The diagram presents a flowering plant. Use the key to work out the plant.
May/June 2018
The diagram depicts an animal with the scientific name $\textit{Falco peregrinus}$. Which species is it a member of?
May/June 2018
The illustration shows a flowering plant. Refer to the key to identify the plant.
May/June 2018
The diagram shows an animal with the scientific name Falco peregrinus. What species does it belong to?
May/June 2018
The diagram presents a flowering plant. Use the key to identify which plant it is.
May/June 2018
The diagram shows an animal with the scientific name $\text{Falco peregrinus}$. Which species does it belong to?
May/June 2018
The diagram depicts a flowering plant. Use the key to identify the plant.
May/June 2018
The diagram depicts an animal with the scientific name $\textit{Falco peregrinus}$. What species is it classified in?
May/June 2018
The diagram illustrates a flowering plant. Use the key to identify the plant.
May/June 2018
The diagram illustrates an insect. Which insect is it? 1 insect has no wings \dots go to 2 insect has wings \dots go to 3 2 legs longer than, or as long as the body \dots A legs shorter than the body \dots B 3 abdomen long and thin \dots C abdomen shorter and wider \dots D
May/June 2019
An animal is shown in the diagram. Use the key to identify the animal.
May/June 2019
The photograph depicts an organism. Refer to the key to identify the organism. 1 The mouth is positioned at the front of the head. ......................... go to 2 The mouth lies between the eye and the fins. .................... A 2 The long fin on the back has light-coloured spots. ....................... go to 3 No spots are present on the long fin. ............................ B 3 The tail fin is longer than the body itself. .......................... C The tail fin is shorter than the body itself. ......................... D
May/June 2019
The diagram illustrates how $\textit{Homo sapiens}$ (modern people) may have evolved from earlier ancestors. Which of the following statements about modern people and their ancestors is correct?
May/June 2019
A list of scientific names for several animals is shown. 1. Camelus dromedarius 2. Camelus ferus 3. Equus ferus 4. Struthio camelus Which of these animals belong to the same genus?
May/June 2021
Scientists have found a previously unknown animal species. Its body is divided into segments, and each segment carries two pairs of legs. Which animal group does this new species belong to?
May/June 2021
What term describes a group of living organisms that are able to reproduce and produce fertile offspring?
May/June 2021
Which statement about the binomial naming system is correct?
May/June 2021
A new animal species has been discovered by scientists. Its body is segmented, and every segment carries two pairs of legs. Which animal group does this new species belong to?
May/June 2021
A new animal species has been identified by scientists. Its body is made up of segments, and each segment bears two pairs of legs. Which group of animals does this new species belong to?
May/June 2021
Which method gives the most accurate way to classify animals?
May/June 2021
Fig. 1.1 is a dichotomous key, which may be used to identify different kinds of tree from their leaves. Fig. 1.2 shows leaves taken from six different trees.
May/June 2021
State the name of the broad group of organisms to which insects, arachnids, crustaceans and myriapods belong.
May/June 2021
Many scientists disagree about how the giant panda, Ailuropoda melanoleuca, should be classified. Fig. 2.1 shows a giant panda feeding on bamboo plants. Fig. 2.2 shows a red panda, Ailurus fulgens, together with a polar bear, Ursus maritimus.
May/June 2021
The diagram depicts an organism. Which kind of arthropod is this organism?
May/June 2022
Which two levels of classification are included in an organism’s scientific name when the binomial system is used?
May/June 2022
The diagram shows an arthropod that lives on land. Which group of arthropods does this animal belong to?
May/June 2022
The scientific names of a few animals are shown here. 1. Arius felis 2. Felis concolor 3. Felis rufus 4. Macropus rufus Which animals belong to the same genus?
May/June 2022
The diagram presents a dichotomous key for arthropods. The organism illustrated is an arthropod known as an isopod. To which group does the isopod belong?
May/June 2022
Which kingdoms share the same genetic code as bacteria?
May/June 2022
Bacteria share the same genetic code with which kingdoms?
May/June 2022
The golden eagle has the scientific name \emph{Aquila chrysaetos}. What is the genus of the golden eagle?
May/June 2023
A few statements about species are shown below. Which of these statements are correct?
May/June 2023
The table displays some characteristics of various animals. Which of the animals is a reptile?
May/June 2023
The scientific name of the golden eagle is $Aquila\ chrysaetos$. What is the genus of the golden eagle?
May/June 2023
Several statements about species are given. Which statements are correct?
May/June 2023
Describe what is meant by the term species.
May/June 2023
What is meant by the term species?
May/June 2024
The diagram depicts an animal. Use the key to identify which animal it is.
May/June 2024
Donkeys and zebras belong to separate species. They are able to mate and produce an animal known as a zedonk. Zedonks are infertile. Which statement is correct?
May/June 2024
Crabs are arthropods that have $10$ jointed legs and two pairs of antennae. Which arthropod class do they belong to?
May/June 2024
The diagram depicts an arthropod. Which arthropod group does it belong to?
May/June 2024
The diagram shows a flower viewed from above. Use the key to determine the family it belongs to.
May/June 2024
In the binomial system, what is the first part of an organism’s scientific name called?
May/June 2024
Which row gives the correct description of each part of the binominal system name for humans?
May/June 2025
Which organism has had its name given by the binomial system?
May/June 2025
Which of the following lists includes only arthropods?
May/June 2025
The scientific name of a rat is $\text{Rattus rattus}$. What do the two parts of this name indicate?
May/June 2025
Among the animals shown, which one is a crustacean?
May/June 2025
An organism made of one cell has chloroplasts, a cell wall and a nucleus. Into which kingdom is this organism classified?
May/June 2025
The diagram depicts an insect. Apply the key to identify the insect. 1 wings present .......................................... proceed to 2 wings absent .......................................... A 2 two pairs of wings .......................................... proceed to 3 one pair of wings .......................................... B 3 wings with circular markings .......................................... C wings without circular markings .......................................... D
Oct/Nov 2016
The scientific name of humans is $\textit{Homo sapiens}$. What does $\textit{Homo}$ denote?
Oct/Nov 2016
The diagram depicts an insect. Use the key to identify the insect. Key: 1 wings present \(\rightarrow\) go to 2 wings absent \(\rightarrow\) A 2 two pairs of wings \(\rightarrow\) go to 3 one pair of wings \(\rightarrow\) B 3 wings with circular markings \(\rightarrow\) C wings without circular markings \(\rightarrow\) D
Oct/Nov 2016
The diagram depicts an insect. Use the key to identify which insect is shown. 1 if wings are present .......................... go to 2 if wings are absent ............................ A 2 if there are two pairs of wings .............. go to 3 if there is one pair of wings .................. B 3 wings showing circular markings ............. C wings showing no circular markings ............ D
Oct/Nov 2016
The diagram depicts an insect. Use the key to identify which insect it is.
Oct/Nov 2016
The scientific name for humans is $\textit{Homo sapiens}$. What does $\textit{Homo}$ denote?
Oct/Nov 2016
The diagram depicts an insect. Use the key to identify which insect it is.
Oct/Nov 2016
Scientists identify a previously unknown animal species. Its body is divided into segments, and each segment carries two pairs of legs. Which group of animals does this new species belong to?
Oct/Nov 2016
The diagram depicts an insect. Use the key to identify this insect. Key: 1. wings are present → go to 2 wings are absent → A 2. two pairs of wings → go to 3 a single pair of wings → B 3. wings with circular markings → C wings without circular markings → D
Oct/Nov 2016
The table gives the scientific names of four members of the cat family. Which statement is correct?
Oct/Nov 2017
The dire wolf is a wolf species that has become extinct. What is the scientific name of this wolf?
Oct/Nov 2017
Among the animals illustrated, which one is a crustacean?
Oct/Nov 2017
The diagram illustrates a part of DNA taken from a chimpanzee. Which diagram represents a section of DNA from the organism that is most closely related to the chimpanzee?
Oct/Nov 2017