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a) Thigmotropism/haptotropism
b) The part of the stem in contact with the tree trunk has lower auxin content than the outer part;
High concentration of auxin on the outer part away from the plant promotes faster growth of this side causing the stem of the plant to grow or coil round the tree trunk.
sharon kalunda answered the question on March 22, 2019 at 11:13
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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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Date posted: March 22, 2019. Answers (1)
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Date posted: March 22, 2019. Answers (1)
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Name the type of cells found in part labeled E.
Date posted: March 22, 2019. Answers (1)
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Date posted: March 22, 2019. Answers (1)
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b) Presence of caecum in herbivorous mammals.(Solved)
State the importance of each of the following features in animals;
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b) Presence of caecum in herbivorous mammals.
Date posted: March 22, 2019. Answers (1)
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i)Glycosuria
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Date posted: March 22, 2019. Answers (1)
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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)
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- 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)
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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)
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State the changes that occur in a nerve axon to produce an action potential.
Date posted: March 22, 2019. Answers (1)
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Distinguish between identical twins and fraternal twins.
Date posted: March 22, 2019. Answers (1)
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State function of the following in seed. Germination.
i) Water
ii) Enzymes
iii) Oxygen
Date posted: March 22, 2019. Answers (1)
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(a) Ribcage and thoracic cavity.
(b) Diaphragm
(c) External intercostal...(Solved)
List the changes that takes place during inhalation in the breathing cycle of mammal in the following.
(a) Ribcage and thoracic cavity.
(b) Diaphragm
(c) External intercostal muscles.
(d) Internal intercostal muscles.
Date posted: March 22, 2019. Answers (1)
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(i) Yawing
(ii) Pitching
(iii) Rolling(Solved)
Name the fins that prevent the following movements of fish during swimming.
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Date posted: March 22, 2019. Answers (1)
- Write the types of gene mutation represented by the following analogues.
(i) Intended message BRING THERMOS ON OUTING
Actual message BRING MOTHERS ON OUTING
Type ......................................................
(ii) Intended message...(Solved)
Write the types of gene mutation represented by the following analogues.
(i) Intended message BRING THERMOS ON OUTING
Actual message BRING MOTHERS ON OUTING
Type ......................................................
(ii) Intended message PLEASE SAY WHERE YOU ARE
Actual message PLEASE STAY WHERE YOU ARE
Type ......................................................
Date posted: March 22, 2019. Answers (1)
- Use the diagram below to answer the questions that follow.(Solved)
Use the diagram below to answer the questions that follow.
(a) Name structure labelled Y.
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(ii) Give a reason for your answer in b(i) above.
Date posted: March 22, 2019. Answers (1)
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(a) Leaves of Mimosa pudica when they fold after being touched.
(b) Sperms when they swim towards ovum.
(c) Euglena...(Solved)
Name the type of response shown by:
(a) Leaves of Mimosa pudica when they fold after being touched.
(b) Sperms when they swim towards ovum.
(c) Euglena when they swim towards the source of light.
Date posted: March 22, 2019. Answers (1)
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What happens when respiration exceeds photosynthesis in the guard cells of terrestrial plants?
Date posted: March 22, 2019. Answers (1)