Which of the following stimuli is likely to elicit a nastic response in an organism?
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2010
Which of the following organisms is mainly found in the marine habitat?
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2010
The blood component that has the greatest affinity for oxygen is the
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2010
The barrier between maternal and foetal blood is the
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2010
Mycorrhizae promote plant growth by
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2010
A food chain always begins with a
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2010
The average number of individuals of a species per unit area of the habitat is the
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2010
The activity of an organism which affects the survival of another organism in the same habitat constitutes
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2010
Low annual rainfall, sparse vegetation , high diurnal temperatures and cold nights are characteristic features of the
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2010
I. Adoption of appropriate nocturnal habits ll. Burrowing lll. Adjusting their internal body temperature. IV Possession of many sweat pores. Which of the above are ways in which desert animals adapt to extreme heat of th…
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2010
The two halves of the pelvic girdle are joined together at the
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2010
Thyroxine and adrenalin are examples of hormones which control
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2010
A dilute solution of phenylthiocarbamide tastes bitter to some people and is tasteless to others. This is an example of
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2010
The protozoan plasmodium falciparum is transmitted by
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2010
The loss of soil through erosion can be reduced by
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2010
The vector for yellow fever is
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2010
The flippers of a whale and the fins of a fish are examples of
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2010
The main distinguishing features between the soldier termite and other members of the caste are the
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2010
At what stage in the life history of a mammal is the sex of an individual set?
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2010
The chromosome number of a cell before and after the process of meiosis is conventionally represented as