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(a) Anaphase
(b) - Chromatids moves to either poles forming an inverted "V"
- Sister chromatids separate/ pair of chromatid separate; spindle fibres have disappeared
(c) - Tip of shoot/ root
- Fertilized ovule developing into a seed
johnmulu answered the question on May 9, 2017 at 06:29
- (a) Explain how the following prevent self-pollination (i) Protandry (ii) Self-sterility
(b) Give three advantages of cross pollination. (Solved)
(a) Explain how the following prevent self-pollination (i) Protandry (ii) Self-sterility
(b) Give three advantages of cross pollination.
Date posted: May 9, 2017. Answers (1)
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Date posted: May 9, 2017. Answers (1)
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(b) How are the male parts of wind pollinated flowers adapted to their function? (Solved)
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(b) How are the male parts of wind pollinated flowers adapted to their function?
Date posted: May 9, 2017. Answers (1)
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Fruit formation without fertilization is called
Date posted: May 9, 2017. Answers (1)
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How do the male gamete nuclei reach the ovule after pollen grains land on the stigma?
Date posted: May 9, 2017. Answers (1)
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Name the parts of the flower that are responsible the production of gametes.
Date posted: May 9, 2017. Answers (1)
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State two disadvantages of self-pollination
Date posted: May 9, 2017. Answers (1)
- A flower was found to have the following characteristics:
Inconspicuous petals
Long feathery stigma
Small, light pollen grains
(a) What is the likely agent of pollination of the flower?
(b) What is the significance of the flower? (Solved)
A flower was found to have the following characteristics:
Inconspicuous petals
Long feathery stigma
Small, light pollen grains
(a) What is the likely agent of pollination of the flower?
(b) What is the significance of the flower?
Date posted: May 9, 2017. Answers (1)
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State three characteristics that ensures cross-pollination takes place in flowering plants.
Date posted: May 9, 2017. Answers (1)
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Name two benefits that a parasite derives from the host
Date posted: May 8, 2017. Answers (1)
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(a) Name the organism that: (i) Causes malaria; (ii) Transmits malaria
(b) State two control measures for malaria.
Date posted: May 8, 2017. Answers (1)
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Name the process through which free atmospheric nitrogen is converted into nitrates
Date posted: May 8, 2017. Answers (1)
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The diagram below represents a certain plant.
(a) What is the likely habitat for the plant?
(b) Give two reasons for your answer in (a)
Date posted: May 8, 2017. Answers (1)
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(a) Ecology
(b) Carrying capacity (Solved)
What is meant by the following terms?
(a) Ecology
(b) Carrying capacity
Date posted: May 8, 2017. Answers (1)
- The figure below illustrates a food web in a certain ecosystem. (Solved)
The figure below illustrates a food web in a certain ecosystem.
From the food web:
(a) Draw the shortest food chain;
(b) Identify the organisms with the highest (i) Number of predators;
(ii) Biomass.
Date posted: May 8, 2017. Answers (1)
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What is meant by the following terms?
(a) Habitat;
(b) Ecosystem
Date posted: May 8, 2017. Answers (1)
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The diagram below shows a transverse section of a leaf.
(a) Name the habitat of the plant from which the leaf is obtained.
(b) Give two reasons for your answer in (a) above.
Date posted: May 8, 2017. Answers (1)
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State two ways in which aerenchyma tissue in aquatic plants are adapted to their function.
Date posted: May 8, 2017. Answers (1)
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Other than using the quadrat, give two methods of estimating population of grass.
Date posted: May 8, 2017. Answers (1)
- (a) State three effects of dumping untreated sewage into a river.
(b) Name the disease in humans caused by plasmodium falciparum(Solved)
(a) State three effects of dumping untreated sewage into a river.
(b) Name the disease in humans caused by plasmodium falciparum
Date posted: May 8, 2017. Answers (1)