Q. 184.7( 3 Votes )
Mention two adaptive features of penguin that help it in swimming.
The two adaptive features of penguin that help it in swimming are:
I)Their bodies are streamlined.
II) Their feet have webs .
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Collect information about the Indian Meteorological Department.
Write a brief report about the things this department does.NCERT Science
Collect weather reports of seven successive days in the winter months (preferably December). Collect similar reports for summer months (preferably June). Now prepare a table for sunrise and sunset time as shown:
[Note : The timings filled here are for the year 2009. Students may fill this with the latest available data.]
Try to answer the following questions:
(i) Is there any difference in the time of sunrise during summer and winter?
(ii) When do you find that sun rises earlier?
(iii) Do you also find that any difference in the time of sunset during the month of June and December?
(iv) When are the days longer?
(v) When are the nights longer?
(vi) Why are the days sometimes longer and sometimes shorter?
(vii) Plot the length of the day against the days chosen in June and December.NCERT Science
Which option best describes a tropical region?NCERT Science
A carnivore which stripes on its body moves very fast while catching its prey. It is likely to be found inNCERT Science
Following are some of the characteristics of animals:
(i) Diets heavy on fruits
(ii) White far
(iii) Need to migrate
(iv) Loud voice
(v) sticky pads on feet
(vi) Layer of fat under skin
(vii) wide and large paws
(viii) Bright colours
(ix) Strong tails
(x)Long and large beak
For each characteristics indicate whether it is adaptation for tropical rainforests or polar regions. Do you think that some of these characteristics can be adapted for both regions?NCERT Science
Give one example of an animal that can live both in water and on land.NCERT - Exemplar Science
“A fish dies when taken out of water whereas a wall lizard will die if kept under water.” Mention the term used to describe such abilities that allow fish and lizard to survive in their respective habitats.NCERT - Exemplar Science
Given below are some adaptive features of animals:
(i) A layer of fat under the skin
(ii) Long, curved and sharp claws
(iii) Slippery body
(iv) Thick white fur
Which of them are the adaptive features of a polar bear?NCERT - Exemplar Science