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Biology for IGCSE & O level - Characteristics And Classification Of Living Organisms (Section 4)

1
Which process involves the use of light energy to create food?
Answer
(C)
Photosynthesis
2
What type of symmetry do most animals exhibit?
Answer
(B)
Bilateral symmetry
3
Which process is carried out by all organisms that is related to the use of energy?
Answer
(B)
Respiration
4
What is the function of the circulatory system?
Answer
(A)
To transport oxygen
5
Which is NOT associated with excretion from a mammal?
Answer
(B)
Release of heat from the skin
6
What is the function of the mitochondria in a cell?
Answer
(B)
Energy production
7
What is the main function of the leaves of a plant?
Answer
(B)
To perform photosynthesis
8
Which of the following are characteristics of fungi?
Answer
A
B
D
9
Which of the following are features of the insect group?
Answer
A
B
C
10
What is the primary function of the nervous system?
Answer
(B)
To coordinate body functions
11
Which of the following processes are involved in the life of a plant?
Answer
A
B
C
12
What structure in a flowering plant is responsible for absorbing water and mineral ions?
Answer
(B)
Roots
13
Which of the following is an example of a cnidarian?
Answer
(B)
Jellyfish
14
Which group of animals is known for having a closed circulatory system?
Answer
(B)
Fish
15
How many cotyledons (seed leaves) do dicotyledons typically have?
Answer
(B)
Two
16
What is the role of the endocrine system?
Answer
(B)
To produce and secrete hormones
17
Which process in plants is responsible for releasing oxygen?
Answer
(C)
Photosynthesis
18
What is the main function of the vacuole in a cell?
Answer
(B)
Storage of water and nutrients
19
Which of the following are essential components of a cell?
Answer
A
B
C
20
Which of the following are characteristics of living organisms?
Answer
A
B
C
D
21
Which group is best classified by those with a segmented body, an exoskeleton and jointed limbs?
Answer
(C)
Arthropods
22
What would a scientist use in a dichotomous key?
Answer
(C)
Paired statements with contrasting characteristics
23
What do all animals have in common?
Answer
A
C
24
Which of the following is NOT a kingdom of organisms?
Answer
(D)
Bacteria
25
What is the primary goal of the immune system?
Answer
(C)
To fight infections and diseases.
26
What is the function of the cell membrane?
Answer
(C)
To control the passage of substances
27
What is the process by which plants release water vapor into the atmosphere?
Answer
(B)
Transpiration
28
Which of the following are essential processes for plant life?
Answer
A
B
C
D
29
What is the process where a cell engulfs solid particles or other cells?
Answer
(A)
Phagocytosis
30
Which of the following is NOT a characteristic of all living organisms?
Answer
(C)
Movement
31
Which of the following characteristics are shared by all insects?
Answer
A
B
D
32
What is the purpose of the vascular system in plants?
Answer
(B)
To transport water and nutrients
33
Which part of the plant anchors it to the ground?
Answer
(C)
Root
34
Which of the following is a defining feature of birds?
Answer
(B)
Feathers
35
What is the primary purpose of a dichotomous key?
Answer
(B)
To identify organisms based on their observable characteristics.
36
What is the primary function of xylem in plants?
Answer
(A)
Transporting water and minerals
37
What is a rhizome?
Answer
(C)
A thick underground stem
38
What are the features of viruses?
Answer
A
C
39
Which of the following is a defining characteristic of mammals?
Answer
(C)
Production of milk
40
Which of the following are characteristics of mammals?
Answer
A
B
C
41
Which of the following is NOT a characteristic of viruses?
Answer
(B)
Are cellular
42
Which process is essential for all living organisms to obtain energy?
Answer
(B)
Respiration
43
Which of these is an example of a plant adaptation for obtaining nutrients?
Answer
(C)
Deep root systems
44
Which of the following is not a feature for all the cells from organisms in all five kingdoms?
Answer
(A)
Chloroplasts
45
What is the primary function of the excretory system?
Answer
(B)
To remove waste products from the body
46
Which of the following are the main characteristics of arthropods?
Answer
A
B
D
47
What is the primary function of the stem in flowering plants?
Answer
(C)
Supporting the leaves and flowers
48
What is the name of the structure that protects animal cells?
Answer
(B)
Cell membrane
49
Which of the following is NOT a feature of the plant kingdom?
Answer
(C)
Heterotrophic
50
Which of the following organisms are capable of photosynthesis?
Answer
B
D