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(a)State the method of dispersal for each of the following:
(i)Orange.
(ii)Sonchus.
(iii)Coconut.
(b)Name the agent of dispersal for each of the following fruits:
(i)Orange.
(ii)Coconut.
(c)Name a seed dispersed by:
(i)Wind.
(ii)Censor mechanism.
Date posted:
March 2, 2019
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What are the advantages of excreting uric acid other than ammonia in a kangaroo rat?
Date posted:
March 2, 2019
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Give two reasons why pressure of blood is greater in arteries than in veins of animals.
Date posted:
March 2, 2019
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State two artificial ways of breaking seed dormancy.
Date posted:
March 2, 2019
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Explain why several lateral buds sprout when the terminal bud in a young tree is cut off.
Date posted:
March 2, 2019
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Trace the path taken by oxygen to reach the muscle cells in an insect.
Date posted:
March 2, 2019
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(i)Name the causative agent of pulmonary tuberculosis.
(ii)How is the disease prevented?
Date posted:
March 2, 2019
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Define the following terms:
(i)Peristalsis.
(ii)Emulsification.
Date posted:
March 2, 2019
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Name two substances that are not filtered out of the blood in the glomerulus.
Date posted:
March 2, 2019
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State two physiological processes by which humans lose heat.
Date posted:
March 2, 2019
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What problems results from transpiration?
Date posted:
March 2, 2019
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Why do plant roots require oxygen for the uptake of ions?
Date posted:
March 2, 2019
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Describe how a named finned fish is adapted for swimming.
Date posted:
March 2, 2019
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What are the Harmful Effects of fungi?
Date posted:
February 28, 2019
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What are the Economic importance of protoctista?
Date posted:
February 28, 2019
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Give the General Characteristics of Kingdom Protoctista
Date posted:
February 28, 2019
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Which are the bones of hind limb?
Date posted:
February 28, 2019
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Which are the Bones of Fore-limbs?
Date posted:
February 28, 2019
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Name the Types and Functions of Skeletons
Date posted:
February 28, 2019
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State the role of support tissues in young and old plants
Date posted:
February 28, 2019
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Name the defects of the ear.
Date posted:
February 28, 2019
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List the effects of hard drugs on human health
Date posted:
February 28, 2019
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What are the similarities between endocrine and nervous system?
Date posted:
February 28, 2019
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Write brief notes on Thyroxine
Date posted:
February 28, 2019
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State the Hormones produced in humans and their effects on the body.
Date posted:
February 28, 2019
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Give the Components of the nervous system in humans
Date posted:
February 28, 2019
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Define the following:
1. Phototaxis
2. Osmotaxis
3. Chemotaxis
Date posted:
February 28, 2019
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Define the following terms as used in Genetics:
1. Genotype
2. Phenotype
3. Alleles
4. Homozygous
5. Heterozygous
6. Hybrid
7. Hybrid vigour or Heterosis
Date posted:
February 28, 2019
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What are the Components of DNA?
Date posted:
February 28, 2019
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What are the Properties of Chromosomes?
Date posted:
February 28, 2019