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Which of the following options exemplifies a behavioural means of homeostasis?
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Important Questions on Organisms and Populations
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A behavioural strategy of adaptation called echolocation is found in
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If an organism's body pattern resembles its environment making it difficult to spot, it is called
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Dart frogs (Phyllobates bicolour, Dendrobates pumilio) found in tropical rainforests of South America are highly poisonous as well as brightly coloured to be easily noticed. This is referred to as
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Match Column I with Column II and select the correct option from the given codes.
| Column I | Column II | ||
|---|---|---|---|
| An endothermic animal | Sea anemone | ||
| An ectothermic animal | Man | ||
| An organism of benthic Zone | Lizard | ||
| An organism Exhibiting camouflage | Chameleon |
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Population ecology is an important area because it __(i)__ ecology to population genetics and __(ii)__. Identify (i) and (ii) in the above statement and select the correct option.
| (i) | (ii) | |
|---|---|---|
| (a) | distinguishes | evolution |
| (b) | distinguishes | biogenesis |
| (c) | links | evolution |
| (d) | links | biogenesis |
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In a pond, last year there were 30 lotus plants. Through reproduction, 25 new lotus plants were added in one year while 8 plants died. The birth and death rates for the lotus population, respectively are _____ and _____ individuals per lotus per year.
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Parameters related to age structure include
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In a life table, the number of individuals alive at the beginning of the 1st year to 2nd year interval is 800. During this interval, 200 individuals die. The death rate for this interval is
