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HIA International — Grade 6

Unit 1: Cells and organisms

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Unit 2: States of matter, atoms and compounds

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Unit 3: The Solar System and energy

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Unit 4: Living organisms and classification

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Unit 5: Metals, non-metals, acids and alkalis

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Unit 6: Sound, the Earth and eclipses

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Unit 7: Microorganisms and food webs

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Unit 8: Chemical reactions

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Unit 9: Electricity and circuits

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Quiz

4.3 What Is A Species

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What Is A Species Checkpoint Biology quiz: free practice for Cambridge Checkpoint Biology 0893. Work through this What Is A Species Checkpoint Biology quiz and get instant feedback on every answer. If you get stuck, review the 2.3 What is a species lesson. More practice: Cambridge Checkpoint Biology 0893 — all units. Syllabus: Cambridge Lower Secondary programme.

  • Questions count: 48
  • Passing grade: B+
  • Time limit:
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1.
Which statement best expresses the lesson objective about What is a species??
Compare organisms belonging to different species
The terms breed and fertile are always interchangeable
Evidence is unnecessary when studying What is a species?
Every model is an exact copy of reality
2.
Which practical work belongs to What Is A Species?
Use evidence to discuss why viruses sit at the boundary between living and non-living
Follow paired-choice questions accurately and check identification against observable features
Apply the seven characteristics to living, non-living and once-living examples
Use reproductive evidence and observable features to compare organisms
3.
Which statement correctly describes binomial name?
the two-part scientific name of a species, in Latin
an animal without a backbone
young that are themselves able to reproduce
the sorting of living things into groups based on shared features
4.
Grade 6 students measured the hand span of everyone in their class and drew the chart shown. What type of variation does hand span show, and what feature of the chart tells you?
Dr Dabour Hub Academy - figure 1
Discontinuous – each student is in one bar only
Continuous – the bars touch because values form a range
Continuous – the tallest bar is in the middle group
Discontinuous – there are exactly seven groups
5.
The diagram shows two elephant specimens, X and Y. One is an Indian elephant and one is an African elephant. Which is the African elephant, and what evidence shows this?
Dr Dabour Hub Academy - figure 2
Y, as it has much larger ears and a back that dips in the middle
X, as it has smaller ears and a back that curves upwards
Y, as it is the only one with a trunk and tusks
X, as it is smaller and has four thick legs
6.
Two birds, P and Q, look quite different. The diagram shows what happened when they reproduced. What is the best conclusion?
Dr Dabour Hub Academy - figure 3
P and Q are different species because they look different
P and Q are different species because they made hybrids
The chicks are a new species, different from both parents
P and Q are one species; their differences are variation
7.
Four students each typed the scientific name of the lion on a card, shown in the diagram. Which card is written correctly?
Dr Dabour Hub Academy - figure 4
Card A, genus first with a capital, all in italics
Card B, as neither word needs a capital letter
Card C, as both words should start with a capital
Card D, as the species word should come first
8.
Omar took 30 seeds from ONE sunflower head and grew 10 in each place, with the same soil and water. The chart shows his results. What is the best conclusion about the variation in height?
Dr Dabour Hub Academy - figure 5
The difference in height was inherited from different parents
The plants in deep shade must be a different species
The amount of light, an environmental factor, affected height
Height is not affected by the environment at all
9.
A zoo kept breeding records for four pairs of parent animals. Every pair produced healthy offspring. The chart shows what percentage of those offspring later had young of their own. Which pairs were members of the same species?
Dr Dabour Hub Academy - figure 6
The parents in crosses B and D
The parents in crosses A and C
All four pairs, as all had healthy young
None of the pairs, as no cross reached 100%
10.
Hassan compared two beetle specimens with a hand lens. He concludes that they must be different species because they have differences. Evaluate his conclusion.
He is right: any difference in colour means a new species
He is right: the lengths differ by more than 2 mm
He is wrong: they share five features so they are identical
Not proven: he must find out if they breed to give fertile young
11.
The table shows information about three dog breeds. What does the evidence show?
Each breed is a separate species because of its size
The Chihuahua and Great Dane are different species
All the breeds are one species showing variation
The puppies from these crosses are infertile hybrids
12.
Ms Idris's class collected data about four features. Which two features show discontinuous variation?
Blood group and tongue rolling
Height and mass
Height and blood group
Mass and tongue rolling
13.
Rami sorted features by what causes their variation. Which row of his table is wrong?
The row for eye colour
The row for height
The row for the scar
The row for language
14.
A British scientist and an American scientist both write about a "robin". The table shows what each of them means. What does this show?
Both birds must be the same species as they share a name
Scientific names change from one country to another
The two birds are in the same genus, Robin
Common names can confuse; a scientific name identifies one species
15.
Scientists recorded the fur thickness of rabbits of one species in autumn and counted how many were still alive after a very cold winter. Which statement is best supported?
The rabbits with thin fur must be a different species
Every rabbit in the species has identical fur
Variation in fur let some rabbits survive the change
Fur thickness made no difference to survival
16.
Which is the full scientific definition of a species?
A group of organisms that all look exactly the same as each other
A group of organisms that live in the same habitat
Any two organisms that can mate, whether or not the young are fertile
A group of organisms that can reproduce together to produce fertile offspring
17.
Why do scientists use a reproduction test, rather than appearance alone, to decide whether two organisms are the same species?
Members of a species vary, so looks can mislead
Organisms of the same species are always identical
It is impossible to see organisms clearly enough
Appearance is only useful for plants, not animals
18.
A zoo keeper says lions and tigers must be the same species because together they produced a healthy liger. Which is the best evaluation?
He is right: the liger is healthy, so it proves one species
He is wrong: ligers are infertile, so these are different species
He is right: any two big cats are the same species
He is wrong: lions and tigers can never reproduce together
19.
Organisms of different species very rarely reproduce with each other. When is a hybrid such as a liger most likely to be produced?
In the wild, whenever lions and tigers meet
When a lion and a lioness breed in the wild
In a zoo, when no mate of its own species is present
When a tiger is kept alone with no other animals
20.
Lucy has two snail specimens and wants to compare them carefully. Which plan is best?
Glance at them and write down the first difference noticed
Only measure their shells, as colour and body do not matter
Decide they are one species because they are both snails
Use a hand lens, list five similarities and two differences in a table, then wash hands
21.
Indian elephants and African elephants share many features, such as a trunk, tusks and grey skin. Why are they classed as two different species?
African elephants have a longer trunk
They do not reproduce with each other
They live on different continents
Indian elephants are grey but African ones are not
22.
Which feature of a person is affected by BOTH inheritance and the environment?
Blood group
A scar from a fall
Body mass
Natural eye colour
23.
Each option links a key word to a meaning. Which pairing is correct?
Fertile – exactly the same as the parents
Identical – able to produce offspring
Infertile – not able to reproduce
Specimen – the young produced by reproduction
24.
Each option links a type of variation to an example. Which pairing is correct?
Discontinuous – being able to roll the tongue
Continuous – a person's blood group
Discontinuous – a person's body mass
Continuous – a person's natural eye colour
25.
Each option links a cause of variation to a feature. Which pairing is correct?
Inherited only – a scar on the arm
Environmental – the language a person speaks
Environmental only – natural eye colour
Inherited only – a person's height
26.
Each option links a classification level to an example taken from the names Panthera leo and Homo sapiens. Which pairing is correct?
Species – Homo
Genus – sapiens
Species – Panthera
Genus – Panthera
27.
Match the term to its correct meaning: mule
an animal without a backbone
a group of organisms that can breed together to produce fertile offspring
the infertile offspring of a horse and a donkey, showing they are separate species
the sorting of living things into groups based on shared features
28.
The two-part scientific name of a species is its _____ name.
common
family
local
binomial
29.
The diagram shows the groups used to classify living organisms, from the largest to the smallest. The level marked ? is _____.
Dr Dabour Hub Academy - figure 7
the breed
the hybrid
the genus
the specimen
30.
Use the table of scientific names. The animal that is in a different genus from the other three is the _____.
house cat, Felis catus
tiger, Panthera tigris
leopard, Panthera pardus
lion, Panthera leo
31.
A sample of an organism that you examine closely, for example with a hand lens, is called _____.
a species
a specimen
a hybrid
an offspring
32.
The differences between individual organisms that belong to the same species are called _____.
offspring
fertility
classification
variation
33.
Classification sorts living things at random. - True or false?
True
False
34.
Each species has a one-word scientific name. - True or false?
True
False
35.
A horse and a donkey produce a mule, which is infertile. - True or false?
True
False
36.
Classification sorts living things into groups based on shared features. - True or false?
True
False
37.
Members of the same species are identical to one another. True or false?
True – that is how species are defined
False – they are similar but show variation
True, but only for animals
False – they share no features
38.
An infertile animal, such as a liger, can still be healthy and alive. True or false?
True – it just cannot have offspring
False – infertile animals always die young
False – infertile means it is ill
True, but only in the wild
39.
A Labrador and a poodle are different species because they look very different. True or false?
True – different looks mean different species
True, but only when fully grown
False – they breed to give fertile puppies
False – they cannot breed at all
40.
Offspring produced by two parents of the same species belong to that same species. True or false?
False – each offspring is a new species
False – they always become hybrids
True, but only if they are identical
True – they are the same kind as their parents
41.
If two animals mate and all their offspring are infertile, the two parents belong to different species. True or false?
True – fertile offspring are needed
False – mating proves they are one species
False – infertile young are a new species
True, but only if the young look odd
42.
Blood group is an example of continuous variation. True or false?
True – blood group can be any value
True, but only in adults
False – it falls into distinct groups
False – blood group does not vary
43.
In the name Homo sapiens, Homo is the genus and sapiens is the species. True or false?
False – the species is written first
True – the genus is written first
False – both words are the genus
True, but only when underlined
44.
A scar that a father got in an accident is inherited variation that will be passed to his children. True or false?
True – all features are passed on
True, but only to his sons
False – scars are not variation
False – a scar is environmental variation
45.
After handling live specimens such as woodlice in a comparison activity, students should wash their hands carefully. True or false?
True – this is the safety rule
False – woodlice are too small to matter
True, but only if the woodlice died
False – gloves are always required instead
46.
Variation between two different species, such as a cat and a dog, is usually much larger than variation within one species. True or false?
False – it is the other way round
True – within a species it is smaller
False – there is no variation within a species
True, but only for plants
47.
Nadia saw two birds that looked almost the same, so she concluded they must be the same species. Her conclusion is certain. True or false?
True – similar looks prove one species
True, but only if they sing the same song
False – similar birds are always different species
False – she needs to know if they breed fertile young
48.
A liger is a new species because it is a healthy animal with features of both parents. True or false?
True – it is different from both parents
True, but only if it lives in a zoo
False – it is an infertile hybrid
False – ligers are always unhealthy
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Part of Unit 4: Living organisms and classification — see every lesson and quiz in this unit.
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