MEMORANDUM
Module 1: The Characteristics of Living Things
1. Name the group of closely related species in the Hierarchical Classification System,
which is the category immediately above species.
Answer: Genus / Genera
2. Name the largest natural population of organisms that can potentially interbreed to
produce fertile offspring.
Answer: Species
3. Complete the passage below by choosing the correct word from the list below.
(Excretion, Organisms, Growth, Reproduction, Movement, Respiration, Nutrition)
a. Living things are often called:
Answer: Organisms
b. All living things release energy from their food in a process called:
inside their cells)
(Which happens
Answer: Respiration
c. The production of a young one is called:
Answer: Reproduction
d. The removal of waste substances in an organism is called:
Answer: Excretion
e. Some of our energy is used for ________________ which usually happens more
quickly in animals than in plants
Answer: Movement
4. The table below shows some characteristic features of four vertebrates.
vertebrate is a mammal?
Which
Answer:
D
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MEMORANDUM
Module 1: The Characteristics of Living Things
Fig. 1.1 shows six arthropods
Figure. 1.1
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MEMORANDUM
Module 1: The Characteristics of Living Things
1.
Use the key to identify each arthropod.
Write the genus in Table 1.1.
1 Wings present
Wings absent
2
One pair of wings
Two pairs of wings
Musca
Libellula
3
Legs present on most of body
Legs on front part of body only
4
5
4
Legs all similar
Legs of different types
Lithobius
Leander
5
Three pairs of legs
Four pairs of legs
Pediculus
Araneus
diagram letter
2.
2
3
genus
A
Answer: Musca
B
Answer: Leander
C
Answer: Pediculus
D
Answer: Araneus
E
Answer: Lithobius
F
Answer: Libellula
(a) State one diagnostic feature of arthropods which you can see in all the animals
shown in Fig. 1.1.
__________________________________________________________________
__________________________________________________________________
Answer:
jointed appendages or legs
(b) State the class (sub-group) of arthropod to which animal F belongs.
_____________________________________________________________
Answer:
Insecta
(c) State three diagnostic features of this class (sub-group) which you can see in the
drawing of F.
1.
__________________________________________________________
2.
__________________________________________________________
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MEMORANDUM
Module 1: The Characteristics of Living Things
3.
__________________________________________________________
Answer:
three from: head, thorax and abdomen;
3 pairs of legs;
2 pairs of wings;
1 pair of antennae;
1 pair of compound eyes
3.
Arthropod C lives amongst hair on the human head.
Explain how one feature that you can see in the drawing of C may be an adaptation to
its habitat.
Feature _______________________________________________________________
Explanation ____________________________________________________________
______________________________________________________________________
Answer:
Feature:
AND
Explanation:
4.
claws/hairs/hooks/bristles;
for clinging to hair
Suggest the habitat of arthropod B.
Answer:
(any) aquatic;
5.
Explain how one feature which you can see in the drawing of B appears to be an
adaptation to the habitat you have suggested.
Feature _______________________________________________________________
Explanation ____________________________________________________________
______________________________________________________________________
Answer:
Feature:
AND
Explanation:
telson/paddle/appendages/legs/tail
swimming/water current/gas exchange idea
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