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Form 3 Biology Classification II Questions and Answers

In this session, several biology questions on classification II will be solved. The questions are exam standard and valuable to those preparing for KCSE as well as class exams.

Lessons (31)

• 1.    State two ways in which some fungi are harmful to man.
  0m 39s

• 2.    The diagram below represents a fern. Name (a) The parts labeled A and B. (b) The division to which the plant belongs.
  1m 36s

• 3.    When are two organisms considered to belong to the same species?
  0m 59s

• 4.    A student caught an animal which had the following characteristics: - Body divided in to two parts - Simple eyes - Eight legs The animal belongs to the class...............
  0m 51s

• 5.    A student placed a drop of pond water in a cavity slide and observed it under the microscope. The student observed many fast moving organisms, one of which is represented in the diagram below. (a) (i) Name the kingdom to which the organism belongs. (ii) Give a reason for your answer in (a) (i) above. (b) Name the structures labeled N, P and Q. (c) State two observable features that enable the
  4m 16s

• 6.    Other than having many features in common, state the other characteristics of a species
  1m 14s

• 7.    Beside the abdomen, name the other body part of members of Arachnida.
  0m 0s

• 8.    Name the phylum whose members possess notochord.
  0m 20s

• 9.     Name the class in the phylum arthropoda which has the largest number of individuals?
  0m 26s

• 10.    To which class does an animal with two body parts and four pairs of legs belong?
  0m 32s

• 11.    (a) State three characteristics of kingdom Monera that are not found in other kingdoms. (b) Name the class to which a termite belongs.
  1m 28s

• 12.    (a) What is meant by the term binomial nomenclature? (b) Give two reasons why classification is important.
  3m 11s

• 13.    Giving a reason in each case, name the class to which each of the following organisms belongs: Bean plant: ……… Reason Bat: ………. Reason
  1m 19s

• 14.    (a) Name the external feature which is common in birds, fish and reptiles. (b) State two characteristics of fungi.
  1m 10s

• 15.    State three external differences between chilopoda and diplopoda
  3m 22s

• 16.    The diagram below illustrates the structure of breads mould. (a) Name the part labeled J. (b) State the functions of the structure labeled K.
  1m 29s

• 17.    The diagram below represents a female cone. (a) Name the subdivision of the plant from which the cone was obtained. (b) Other than the presence of cones, name two other external features that identify plants in the subdivision named in (a) above.
  1m 44s

• 18.    State three characteristics of the Crustacea.
  1m 20s

• 19.    The diagram below illustrates the organs of some flowering plants. State the classes of plants to which each belong.
  1m 6s

• 20.    The diagram bellow represents a certain organism. State the phylum and class to which it belongs.
  0m 39s

• 21.    The diagram below represents a certain organism collected by a student at the sea shore. (a) Name the class to which the organism belongs. (b) Give three reasons for your answer in (a) above.
  1m 29s

• 22.    (a) State two external features found in the class Mammalia only. (b) Name the taxanomic unit that comes immediately after a phylum in classification.
  1m 21s

• 23.    (a) A student collected an organism and observed the following features: simple eyes, four pairs of legs and two body parts. (i) State the class to which the organism belongs. (ii) Give an example of an organism in this class. (b) Name the kingdom to which plasmodium belongs.
  1m 7s

• 24.    Construct a step in a dichotomous key using two leaves, one with a serrated and the other with a smooth margin.
  2m 31s

• 25.    State two characteristics of living organisms that are specific to plants.
  1m 7s

• 26.    (a) The diagram below represents a plant in the division Bryophyta. (i) Name the parts labeled B and D. (ii) State one function for each of the parts labeled A and C. (b) The diagram below represents a member of the kingdom Animalia. (i) Name the phylum to which the organism belongs. (ii) Using observable features in the diagram, give three reasons for the answer in b (i).
  3m 41s

• 27.    (a) What is meant by the term binomial nomenclature? (b) State two guidelines that should be followed when tying scientific names.
  2m 54s

• 28.    State two observable features that place a millipede into its Class.
  0m 49s

• 29.    (a) Besides venation, state two other external characteristics of leaves that can be used to classify plants. (b) Explain why the bat is classified as a mammal yet it flies.
  1m 12s

• 30.    Make a diagram of a simple, bilobed leaf with a serrated margin.
  0m 31s

• 31.    Plasmodium vivax and plasmodium ovale are transmitted by a mosquito. State with a reason whether the two organisms can interbreed.
  1m 0s