Grade 7
Natural Sciences
Classification of living things: Animals
Question 1:
1.1
Multiple Choice - transfer your answers to the answer sheet:
Which one of the following cannot be classified as one of the seven life processes?
A respiration
1.2
B reproduction
B Anthopora abrochia
B Monera
B crayfish
D Fungi
D squid
C yeast
D moss
C Homonid
D Human
To which genus does humans belong?
B Homo
Which of the following belongs to the same phylum as a seal?
B bee
C sparrow
D crab
Dolphins, lions and rabbits belong to the same _________ called __________ .
A class, vertebrates
1.10
C Protista
C scorpion
B algae
A spider
1.9
D species
Identify the one that belongs to Kingdom Fungi.
A Sapiens
1.8
C class
Which one of the following does not have a cephalothorax?
A protozoa
1.7
D Aglae mellifera
Algae falls into which Kingdom?
A tick
1.6
C Aglae caerulea
B genus
A Plantae
1.5
D movement
The most specific classification group within a Kingdom, is:
A family
1.4
C photosynthesis
Which one of the following bees, belong to the same genus as Apis mellifera?
A Apis cerana
1.3
(10)
B class, mammals
C phylum, mammals
Which one of the following is a cold-blooded animal?
A newt
B ostrich
C whale
D lion
Answer sheet:
1.1
A B
C
D
1.6
A
B
C
D
1.2
A
B
C
D
1.7
A
B
C
D
1.3
A
B
C
D
1.8
A
B
C
D
1.4
A
B
C
D
1.9
A
B
C
D
1.5
A
B
C
D
1.10
A
B
C
D
Page 1 of 9
Grade 7
Natural Sciences
Classification of living things: Animals
Question 2:
In each of the following, identify the animal that does not fit
and give detailed reasons for your answer:
2.1
2.2
2.3
2.4
2.5
A moth
_____________________________________________________
B crab
_____________________________________________________
C snail
_____________________________________________________
D jellyfish
___________________________________________________
A lizard
_____________________________________________________
B owl
_____________________________________________________
C tadpole
_____________________________________________________
D bat
___________________________________________________
A Carp
_____________________________________________________
B crocodile
_____________________________________________________
C turtle
_____________________________________________________
D salamander
___________________________________________________
A sea slug
_____________________________________________________
B centipede
_____________________________________________________
C scorpion
_____________________________________________________
D prawn
___________________________________________________
A dove
_____________________________________________________
B locust
_____________________________________________________
C frog
_____________________________________________________
D dolphin
___________________________________________________
Question 3:
(3)
(3)
(3)
(3)
(3)
Definitions
3.1
Define the following in detail:
3.1.1
Vertebrates
___________________________________________________________
_____________________________________________________________________________
__________________________________________________________________________
3.1.2
(3)
Invertebrates ___________________________________________________________
_____________________________________________________________________________
__________________________________________________________________________
(3)
Page 2 of 9
Grade 7
Natural Sciences
Classification of living things: Animals
3.1.3
cold-blooded (ectothermic) _________________________________________________
_____________________________________________________________________________
__________________________________________________________________________
3.1.4
arthropod
(3)
___________________________________________________________
_____________________________________________________________________________
__________________________________________________________________________
3.1.5
(3)
cephalothorax ___________________________________________________________
_____________________________________________________________________________
__________________________________________________________________________
3.1.6
biodiversity
(3)
___________________________________________________________
_____________________________________________________________________________
__________________________________________________________________________
(2)
3.2
(4)
Differentiate between Kingdom Monera and Kingdom Protista, providing examples.
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
Question 4:
Complete the table below, comparing animals to plants:
Animals
(10)
Plants
Movement
Nutrition
Reproduction
Growth
Response to stimuli
Page 3 of 9
Grade 7
Natural Sciences
Classification of living things: Animals
Question 5.1: Complete the seven levels of classification, moving downwards from least
specific to most specific
5.2
Using the classification system above, complete the classification of humans:
(5)
Kingdom _________________________, Phylum ___________________________________,
Class ___________________________, Order Primates, Family Hominid,
Genus __________________________, Species ____________________________________
5.3
Why is a classification system, like the one above, needed?
(2)
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
Question 6:
Complete the tree diagram on the next page, then arrange the following
organisms under the correct heading.
(14)
salamander, crocodile, cockroach, tick, sea anemone, abalone, rabbit, mould
eagle, Yellowtail, ostrich, cobra, crab, whale, protozoa, prawn, slug, lizard,
giraffe, terrapin, slime moulds, dove, Sole, newt, octopus, mosquito,
mushrooms, spider, crayfish, butterfly, dolphin, penguin, toad, human, cricket,
cat, scorpion, moth, Galjoen, vulture, shark, butterfly, jelly fish, frog,
shrimp, Bass, algae, turtle, Blue Crane, bee
Page 4 of 9
Natural Sciences
Grade 7
Page 5 of 9
Grade 7
Natural Sciences
MEMO:
Question 1:
Multiple Choice - transfer your answers to the answer sheet:
(10)
1.1
A
B
C
D
1.6
A
B
C
D
1.2
A
B
C
D
1.7
A
B
C
D
1.3
A
B
C
D
1.8
A
B
C
D
1.4
A
B
C
D
1.9
A
B
C
D
1.5
A
B
C
D
1.10
A
B
C
D
Question 2:
In each of the following, identify the animal that does not fit and give detailed
reasons for your answer:
2.1
2.2
A moth
A - all the others have a two-segmented body consisting of a
B crab
cephalothorax and an abdomen.
C snail
A moth has a three-segmented body consisting of a head,
D jellyfish
thorax and abdomen
A lizard
C - all the others breathe with lungs. The tadpole is an
B owl
amphibian that breathes using gills. Once an adult frog it
C tadpole
breathes through its skin and lungs.
(3)
D bat
2.3
A Carp
B crocodile
C turtle
D salamander
(3)
D - the skins of all the others are covered in scales. The
salamander is an amphibian with a soft, moist and smooth
skin covering.
(3)
A sea slug
2.4
B centipede
A - all the others have an exoskeleton. A sea slug is mollusc
C scorpion
with a hydrostatic skeleton.
(3)
D prawn
A dove
2.5
B locust
C frog
D dolphin
D - all the others lay eggs. A dolphin gives birth to life young
and does not lay eggs.
(3)
Page 6 of 9
Grade 7
Natural Sciences
MEMO:
Question 3:
3.1
Definitions
Define the following in detail:
3.1.1 Vertebrates Vertebrates are animals with a backbone or an endoskeleton. The
backbone is a series of bones that are connected to form a spine or a spinal column. There are five
classes of vertebrates: fish, amphibians, reptiles, birds and mammals.
(3)
3.1.2 Invertebrates Invertebrates are animals without a backbone and are divided into two phyla,
arthropods with exoskeletons and molluscs with hydrostatic skeletons.
(3)
3.1.3 cold-blooded
An animal is cold-blooded(ectothermic) when it cannot keep the
temperature of its body constant. The body temperature changes with temperature changes in the
environment, e.g. fish, amphibians and reptiles are cold-blooded. (Endothermic or warm-blooded
animals are birds and mammals)
(3)
3.1.4 arthropod
An arthropod is an invertebrate with a segmented body and jointed
legs. Arthropods have exoskeleton and are further divided into insects, arachnids and
crustaceans.
(3)
3.1.5 cephalothorax
A body of an arthropod that is divided into two segments only, where
the cephalothorax is the fused head and thorax.
(2)
3.1.6 biodiversity
Biodiversity refers to the large variety of plants, animals and microorganisms living in habitat. The more diverse a habitat is (meaning many different species live in a
habitat), the better the chances of survival within that habitat for the different species.
(2)
3.2
Differentiate between Kingdom Monera and Kingdom Protista, providing examples.
(4)
Kingdom Monera includes tiny one-cell organisms that can only be seen with a microscope. These
include bacteria and blue-green bacteria (called blue-green algae).
Kingdom Protista includes one-cell or many-cell organisms with simple cell structures. They are
larger than the organisms in Kingdom Monera and include protozoa, algae and slime moulds.
Question 4:
Complete the table below, comparing animals to plants:
Animals
(10)
Plants
Movement
Move from place to place by walking,
crawling, flying, hopping etc.
Cannot move from place to
place - move towards or away
from sunlight or open or close
Nutrition
Consumers - cannot produce their
own food and eat plants or other
animals
Producers - photosynthesize
to produce sugar
Reproduction
Reproduce with fertilised eggs
Reproduce by seeds, spores
or from their leaves,stems or
roots
Growth
Grow to a point, some parts keep
growing e.g.hair and nails
Never stop growing in certain
parts e.g. stems, roots
Response to stimuli
Animals respond quickly to stimuli,
e.g. a loud noise will make animal run
away
Plants respond slowly, e.g.
growth towards a source of
light
Page 7 of 9
Grade 7
Natural Sciences
MEMO:
Question 5.1: Complete the seven levels of classification, moving downwards from least
specific to most specific
Remember it
with this
mnemonic:
Kingdom
Phylum
Kicking
Practice
Creates
Opportunities
For
Great
Soccer
Class
Order
Singular: phylum
Plural: phyla
Singular: genus
Plural: genera
Singular and
Plural: species
Family
Genus
Species
5.2
Using the classification system above, complete the classification of humans:
(5)
Kingdom Animalia, Phylum Vertebrates, Class Mammal, Order Primates,Family Hominid,
Genus Homo, Species sapiens
5.3
Why is a classification system, like the one above, needed?
(2)
Biologists need a classification system due to the enormous biodiversity of living organisms on
Earth. The classification system groups organisms with similar characteristics together. This helps
biologists when collecting data on specific species, e.g. which species may go extinct.
Question 6:
Complete the tree diagram on the next page, then arrange the following
organisms under the correct heading.
salamander, crocodile, cockroach, tick, sea anemone, abalone, rabbit, mould
eagle, Yellowtail, ostrich, cobra, crab, whale, protozoa, prawn, slug, lizard,
giraffe, terrapin, slime moulds, dove, Sole, newt, octopus, mosquito,
mushrooms, spider, crayfish, butterfly, dolphin, penguin, toad, human, cricket,
cat, scorpion, moth, Galjoen, vulture, shark, butterfly, jelly fish, frog,
shrimp, Bass, algae, turtle, Blue Crane, bee
Page 8 of 9
Natural Sciences
Grade 7
Page 9 of 9