Analogous structures, are those with different embryonic origin but have undergone modification to perform similar functions in different organisms; Examples wings of insects and birds/webbed feet for frogs and ducks;Homologous structures, Are those with a common embryonic origin but have undergone modifications to perform different functions; example The pentadactyle limb of vertebrates;
sharon kalunda answered the question on March 22, 2019 at 12:13
- The diagram below shows a bone that was obtained from a mammal.(Solved)
The diagram below shows a bone that was obtained from a mammal.
a) Identify the bone.
b) i) Name the type of joint formed at the part marked P.
ii) State one characteristic of the joint named in b) i) above.
Date posted: March 22, 2019. Answers (1)
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The action of pepsin stops in the duodenum. Explain.
Date posted: March 22, 2019. Answers (1)
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What is the importance of the pollen tube in fertilization in plants?
Date posted: March 22, 2019. Answers (1)
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What is the importance of heartbeat in blood circulation?
Date posted: March 22, 2019. Answers (1)
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Distinguish between lymphocytes and phagocytes
Date posted: March 22, 2019. Answers (1)
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State two ways in which white blood cells defend the body against infections.
Date posted: March 22, 2019. Answers (1)
- The figure below shows a stem of a plant growing round a tree trunk(Solved)
The figure below shows a stem of a plant growing round a tree trunk
a) What is the name of the response which causes such a twisted growth?
b) Explain how twisting process is accomplished
Date posted: March 22, 2019. Answers (1)
- A cell organelle can be thought of as a “bag” full of “liquid”, the “liquid” being the “background” substance that holds other structures within the...(Solved)
A cell organelle can be thought of as a “bag” full of “liquid”, the “liquid” being the “background” substance that holds other structures within the “bag”. Distinguish between the “background” substance of a mitochondria and that of a chloroplast.
Date posted: March 22, 2019. Answers (1)
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State two characteristics of Eukaryotes.
Date posted: March 22, 2019. Answers (1)
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State three features that a grasshopper, a crab, a spider and a millipede have in common.
Date posted: March 22, 2019. Answers (1)
- The diagram below shows a section of a dicotyledonous stem.(Solved)
The diagram below shows a section of a dicotyledonous stem.
Name the type of cells found in part labeled E.
Date posted: March 22, 2019. Answers (1)
- In what form is carbon IV oxide transported in blood?(Solved)
In what form is carbon IV oxide transported in blood?
Date posted: March 22, 2019. Answers (1)
- State the importance of each of the following features in animals;
a) Solid food being broken down into small pieces.
b) Presence of caecum in herbivorous mammals.(Solved)
State the importance of each of the following features in animals;
a) Solid food being broken down into small pieces.
b) Presence of caecum in herbivorous mammals.
Date posted: March 22, 2019. Answers (1)
- Name the disease characterized by
i)Glycosuria
ii)Diuresis(Solved)
Name the disease characterized by
i)Glycosuria
ii)Diuresis
Date posted: March 22, 2019. Answers (1)
- State two ways in which skeletal muscles fibres are adapted to their function.(Solved)
State two ways in which skeletal muscles fibres are adapted to their function.
Date posted: March 22, 2019. Answers (1)
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State two measures that can be taken to control infection of man by protozoan parasites.
Date posted: March 22, 2019. Answers (1)
- State one structural and one functional difference between motor and sensory neurones.
- Structural difference –
- Functional difference –(Solved)
State one structural and one functional difference between motor and sensory neurones.
- Structural difference –
- Functional difference –
Date posted: March 22, 2019. Answers (1)
- State one function of each of the following parts of a mammalian ear.
a) Pinna
b) Tympanic membrane
c) Vestibule(Solved)
State one function of each of the following parts of a mammalian ear.
a) Pinna
b) Tympanic membrane
c) Vestibule
Date posted: March 22, 2019. Answers (1)
- State the changes that occur in a nerve axon to produce an action potential.(Solved)
State the changes that occur in a nerve axon to produce an action potential.
Date posted: March 22, 2019. Answers (1)
- Distinguish between identical twins and fraternal twins.(Solved)
Distinguish between identical twins and fraternal twins.
Date posted: March 22, 2019. Answers (1)