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Which of the following statements is not Lamarck's postulate on evolution?
Natural selection arises as a result of?
Which of the following organisms exhibits division of labour?
A woman with Rhesus negative blood group was advised not to marry a man with Rhesus positive blood group because
In humans, pointed eyebrows (B) is a dominant trait over smooth eyebrows (b). A student and the mother have smooth eyebrows while the father has pointed eyebrows. What is the genotype of the father?
Which of the following statements about sickle cell anaemia is correct?
Plants suitable for experiments in genetics must not
A mixture of blood with antigen A and blood containing antibody a will?
Which of the following statements about mitosis is not correct?
The diagrams above are illustrations of types of comb found in domestic fowl. Study them and answer this question.
Which factor is most likely responsible for the various types of comb?
The diagrams above are illustrations of types of comb found in domestic fowl. Study them and answer this question.
The types of comb show ?
Which of the following resources cannot be conserved?
Which of the following practices is a wildlife conservation method?
Endangered species are organisms that are?
Which of the following behaviours is correctly matched with the corresponding diseases?
When a large number of organisms share limited resources, the result is?
An association between living organisms in which one organism lives on and feeds at the expense of the other organism is known as?
Which of the following features is a characteristic of aquatic plants possession of ?
The illustration below is a food chain.
Grass→grasshopper→domestic fowl→hawk
What would happen if the population of domestic fowl decreases?
Rabbits cannot survive in an aquatic habitat because they have