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Growth – Increase in size of an organism or its parts due to synthesis of protoplasm
Development – Differentiation and formation of various tissues to perform specialized functions;
marto answered the question on October 7, 2019 at 09:10
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The diagram below represents a growth pattern of arthropods.
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(b)Identify the process represented by X.
(c) Which hormone is responsible for process at X in (b) above?
Date posted: October 7, 2019. Answers (1)
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The illustration below represents an eye defect.
Date posted: October 7, 2019. Answers (1)
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The results are shown in the table below.(Solved)
An experiment was carried out to investigate the rate of growth of pollen tube against time.
The results are shown in the table below.
(b) (i) At what intervals was the growth of the pollen tube measured?
(ii) What was the length of pollen tube at; 130 minutes
(iii) At what time was the length of the pollen tube 18mm?
(iv) With reasons, describe the growth pattern of the pollen tube between:
- 0 to 120minutes
- Reason
- 120 to 180 minutes
- Reason
v) State the importance of the growth of pollen tube to the plant
(c) State the changes that take place in a flower after fertilization
Date posted: October 7, 2019. Answers (1)
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The diagram below represents female reproductive system.
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b) State two functions of structure A
c) How is part C adapted to its function?
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Date posted: October 7, 2019. Answers (1)
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Date posted: October 7, 2019. Answers (1)
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Date posted: October 7, 2019. Answers (1)
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Date posted: October 7, 2019. Answers (1)
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The diagram below represents some hormones, their sources and functions in mammals.
a) Name the hormones I, II and III
b) Name hormones IV and state its function
c) Name the control labelled A & B
d) Name one secondary sexual characteristic common to both males and females
Date posted: October 7, 2019. Answers (1)
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The diagrams below represent two gynoecia A and B obtained from two different plants.
(a) What name is given to;
Gynoecium A?
Gynoecium B?
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Date posted: October 7, 2019. Answers (1)
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Date posted: October 7, 2019. Answers (1)
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Date posted: October 7, 2019. Answers (1)
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Date posted: October 7, 2019. Answers (1)
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Date posted: October 7, 2019. Answers (1)
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Date posted: October 7, 2019. Answers (1)
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The diagram below shows a pollen – tube entering the ovule of a flowering plant.
a) Name the parts labeled A, B and D
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Date posted: October 7, 2019. Answers (1)
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State three ways in which flowers parent self pollination.
Date posted: October 7, 2019. Answers (1)
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Name the hormone that Stimulates the disintegration of the corpus inteum when fertilization fails to take place.
Date posted: October 7, 2019. Answers (1)
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Name two mechanisms that hinder self fertilization in flowering plants.
Date posted: October 7, 2019. Answers (1)
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Date posted: October 7, 2019. Answers (1)
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Date posted: October 7, 2019. Answers (1)