FORM 3 WORK
CHAPTER 1: CLASSIFICATION II
1. State two ways in which some fungi are harmful to man ( 2 marks)
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2. The diagram below represents a fern
(a) name the Parts labeled A and B ( 2 marks)
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(b) The division which the plant belongs
( 1 mark)
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(c) Give three distinctive features of the kingdom to which the above organism is a member 3mks
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3. An organism with an exoskeleton, segmented body, two pairs of legs per segment, a pair of eyes and a pair
of eyes and a pair of short antennae belongs to the phylum ( 1 mark)
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4. When are two organisms considered to belong to the same species? ( 2 marks)
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, A student caught an animal which had the following characteristics; Body divided into two parts, Simple
eyes, Eight legs. State the class this animal belongs to ( 1 mark)
………………………………………………………………………………………………………………
5. Below is a list of organisms, which belong to classes insecta, myriapoda and arachnida. Tick, centipede,
praying mantis, tsetse fly. Millipede and spider. Place the organisms in their respective classes in the table
below. Give reasons in each case.
Class Organisms Reasons
Insecta
Myriapoda S
Arachnida
6. State two characteristics features of members of division bryophyte ( 2 marks)
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7. State two ways in which some fungi are beneficial to humans ( 2 marks)
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8. Other than having many features in common state the other characteristics of species ( 1 mark)
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9. Beside the abdomen, name the other body part of members of arachnida ( 1 mark)
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10. Name the phylum whose members possess notochord. ( 1 mark)
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11. Name the class in the phylum arthropoda which has the largest number of individuals ( 1 mark)
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12. To which class does an animal with two body parts and four pairs of legs belong? ( 1 mark)
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13. (a) Name two organisms that cause food spoilage ( 2 marks)
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, …………………………………………………………………………………………………………………
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(b) Name four methods of food preservation and for each state the biological principal behind it.
( 8 marks)
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14. (a) List two characteristics that mammals share with birds ( 2 marks)
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(b) State four major characteristics of mammals ( 4 marks)
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15. What two characteristics distinguish animals in phylum chordata? ( 2 marks)
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16. The diagram below shows a plant
(a) Name the parts labeled A and B (2 marks)
………………………………………………………………………………
(b) Name the division to which the plant belongs ( 1 mk)
………………………………………………………………
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, (c) Which is the dominant generation of the plant in the diagram? (1 mk)
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(d) State three characteristics of the organisms in the division named (b) above? (3mks)
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17. What three characteristics are used to divide the arthropods into classes? (3mks)
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18. (a) Write two differences between algae and fungi (2mks)
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(b) Give the economic importance of algae (1mk)
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19. (a) What is meant by the term alteration of generations? (2mks)
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(b) Name two divisions in kingdom plantae that shows alternation of generation (2mks)
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20. (a) A millipede, grasshopper and crayfish all belong to phylum arthropoda. Mention three major
characteristics that they have in common. (3mks)
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………
(b) The specific name of Irish potato is solanum Tuberrasum
(i) Identify two errors that have been made when writing the name (1mk)
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CHAPTER 1: CLASSIFICATION II
1. State two ways in which some fungi are harmful to man ( 2 marks)
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………....
2. The diagram below represents a fern
(a) name the Parts labeled A and B ( 2 marks)
………………………………………………………………………………………………………………….
(b) The division which the plant belongs
( 1 mark)
…………………………………………………………………………………………………………………..
(c) Give three distinctive features of the kingdom to which the above organism is a member 3mks
………………………………………………………………………………………………………………………
………………………………………………………………………………………………………………………
………………………………………………………………………………………………………
3. An organism with an exoskeleton, segmented body, two pairs of legs per segment, a pair of eyes and a pair
of eyes and a pair of short antennae belongs to the phylum ( 1 mark)
………………………………………………………………………………………………………………
4. When are two organisms considered to belong to the same species? ( 2 marks)
…………………………………………………………………………………………………………………
……………………………………………………………………………………………………………
1
, A student caught an animal which had the following characteristics; Body divided into two parts, Simple
eyes, Eight legs. State the class this animal belongs to ( 1 mark)
………………………………………………………………………………………………………………
5. Below is a list of organisms, which belong to classes insecta, myriapoda and arachnida. Tick, centipede,
praying mantis, tsetse fly. Millipede and spider. Place the organisms in their respective classes in the table
below. Give reasons in each case.
Class Organisms Reasons
Insecta
Myriapoda S
Arachnida
6. State two characteristics features of members of division bryophyte ( 2 marks)
………………………………………………………………………………………………………………
7. State two ways in which some fungi are beneficial to humans ( 2 marks)
………………………………………………………………………………………………………………
8. Other than having many features in common state the other characteristics of species ( 1 mark)
………………………………………………………………………………………………………………
9. Beside the abdomen, name the other body part of members of arachnida ( 1 mark)
………………………………………………………………………………………………………………
10. Name the phylum whose members possess notochord. ( 1 mark)
………………………………………………………………………………………………………………
11. Name the class in the phylum arthropoda which has the largest number of individuals ( 1 mark)
……………………………………………………………………………………………………………....
12. To which class does an animal with two body parts and four pairs of legs belong? ( 1 mark)
………………………………………………………………………………………………………………
13. (a) Name two organisms that cause food spoilage ( 2 marks)
2
, …………………………………………………………………………………………………………………
……………………………………………………………………………………………………………
(b) Name four methods of food preservation and for each state the biological principal behind it.
( 8 marks)
…………………………………………………………………………………………………………….
……………………………………………………………………………………………………………..
………………………………………………………………………………………………………………
………………………………………………………………………………………………………………
………………………………………………………………………………………………………………
14. (a) List two characteristics that mammals share with birds ( 2 marks)
…………………………………………………………………………………………………………………
……………………………………………………………………………………………………………
(b) State four major characteristics of mammals ( 4 marks)
…………………………………………………………………………………………………………………
…………………………………………………………………………….…………………………………
…………………………………………………………………………………………………………………
………………………………………………………………………………………………………
15. What two characteristics distinguish animals in phylum chordata? ( 2 marks)
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
16. The diagram below shows a plant
(a) Name the parts labeled A and B (2 marks)
………………………………………………………………………………
(b) Name the division to which the plant belongs ( 1 mk)
………………………………………………………………
3
, (c) Which is the dominant generation of the plant in the diagram? (1 mk)
………………………………………………………………………………………………………………….
(d) State three characteristics of the organisms in the division named (b) above? (3mks)
………………………………………………………………………………………………………………………
………………………………………………………………………………………………………………………
………………………………………………………………………………………………………………….…..
17. What three characteristics are used to divide the arthropods into classes? (3mks)
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………..……………………
18. (a) Write two differences between algae and fungi (2mks)
…………………………………………………………………………………………………………………
……………………………………………………………………………………………………………
(b) Give the economic importance of algae (1mk)
……………………………………………………………………………………………………………
19. (a) What is meant by the term alteration of generations? (2mks)
…………………………………………………………………………………………………………………
……………………………………………………………………………………………………………
(b) Name two divisions in kingdom plantae that shows alternation of generation (2mks)
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………....
20. (a) A millipede, grasshopper and crayfish all belong to phylum arthropoda. Mention three major
characteristics that they have in common. (3mks)
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………………
…………………………………………………………………………………………………………
(b) The specific name of Irish potato is solanum Tuberrasum
(i) Identify two errors that have been made when writing the name (1mk)
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