(a) Mosquito larvae or pupa are killed by suffocation, thereby breaking the life cycle of mosquitoes
(b) - This practice pollutes the environment,
- Oil is expensive
- Other aquatic organisms are also killed
- The practice contaminates water bodies
johnmulu answered the question on May 8, 2017 at 07:22
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Describe how the quadrant method can be used to estimate the population of various species of plants in a given habitat.
(Solved)
Describe how the quadrant method can be used to estimate the population of various species of plants in a given habitat.
Date posted:
May 8, 2017
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Answers (1)
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The chart below shows a feeding relationship in a certain ecosystem
(Solved)
The chart below shows a feeding relationship in a certain ecosystem
(a) Construct two food chains ending with a tertiary consumer in each case.
(b) Which organism has the largest variety of predators in the food web?
(c) Name secondary consumers in the food web
(d)Suggest three ways in which the ecosystem would be affected if there was prolonged drought.
Date posted:
May 8, 2017
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Answers (1)
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State three characteristics of the class Crustacea
(Solved)
State three characteristics of the class Crustacea
Date posted:
May 8, 2017
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Answers (1)
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(a) What is meant by the term binomial nomenclature?
(b) State two guidelines that should be followed when typing scientific names.
(Solved)
(a) What is meant by the term binomial nomenclature?
(b) State two guidelines that should be followed when typing scientific names.
Date posted:
May 8, 2017
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Answers (1)
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The diagram below represents a member of the kingdom Animalia.
(Solved)
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)
Date posted:
May 8, 2017
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Answers (1)
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The diagram below represents a plant in the division Bryophyta.
(Solved)
The diagram below represents a plant in the division Bryophyta.
(i) Name the parts labelled B and D
(ii) State one function for each of the parts labeled A and C.
Date posted:
May 8, 2017
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Answers (1)
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State two characteristics of living organisms that are specific to plants.
(Solved)
State two characteristics of living organisms that are specific to plants.
Date posted:
May 8, 2017
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Answers (1)
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(a) A student collected an organism and observed the following features:
(Solved)
(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
Date posted:
May 8, 2017
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Answers (1)
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Construct a step in a dichotomous key using two leaves on with a serrated and the other with a smooth margin
(Solved)
Construct a step in a dichotomous key using two leaves on with a serrated and the other with a smooth margin
Date posted:
May 8, 2017
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Answers (1)
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(a) State two external features found in the class Mammalia only.
(b) Name the taxonomic unit that comes immediately after a phylum in classification.
(Solved)
(a) State two external features found in the class Mammalia only.
(b) Name the taxonomic unit that comes immediately after a phylum in classification.
Date posted:
May 8, 2017
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Answers (1)
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The diagram below represents a certain organism collected by a student at the sea shore.
(Solved)
The diagram below represents a certain organism collected by a student at the sea shore.
(a) Name the class to which the organisms belongs.
(b) Give three reasons for your answer in (a) above.
Date posted:
May 8, 2017
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Answers (1)
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The diagram below represents a certain organism.
(Solved)
The diagram below represents a certain organism.
State the phylum and class to which it belongs
Date posted:
May 8, 2017
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Answers (1)
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The diagram below illustrates the organs of some flowering plants.
(Solved)
The diagram below illustrates the organs of some flowering plants.
State the classes of plants to which each belong.
Date posted:
May 8, 2017
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Answers (1)
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State three characteristics of the class Crustacea.
(Solved)
State three characteristics of the class Crustacea.
Date posted:
May 8, 2017
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Answers (1)
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Give three reasons for classifying organisms.
(Solved)
Giving three reasons for classifying organisms.
Date posted:
May 5, 2017
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Answers (1)
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The diagram below represents a female cone.
(Solved)
The diagram below represents a female cone.
(a) Name the subdivision of the plant from which the core was obtained.
(b) Other than the presence of cones, name two other external features that identify plants in the subdivision named in (a) above.
Date posted:
May 5, 2017
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Answers (1)
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The diagram below illustrates the structure of a bread mould.
(Solved)
The diagram below illustrates the structure of a bread mould.
(a) Name the part labeled J.
(b) State the function of the structure labeled K.
Date posted:
May 5, 2017
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Answers (1)
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State three external differences between chilopoda and diplopoda.
(Solved)
State three external differences between chilopoda and diplopoda.
Date posted:
May 5, 2017
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Answers (1)
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(a) Name the external feature which is common in birds, fish and reptiles.
(b) State two characteristics of fungi.
(Solved)
(a) Name the external feature which is common in birds, fish and reptiles.
(b) State two characteristics of fungi.
Date posted:
May 5, 2017
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Answers (1)
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Giving a reason in each case, name the class to which each of the following organisms belong: (i) Bean plant (ii) Bat :
(Solved)
Giving a reason in each case, name the class to which each of the following organisms belong: (i) Bean plant (ii) Bat :
Date posted:
May 5, 2017
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Answers (1)