Download App

Organisms and Populations — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYOrganisms and Populations3 Marks
Question
Write a short note on Behavioural adaptations in animals
✓

Answer

  1. Behavioural responses to cope with variations in their environment are shown by few animals.
  2. Desert lizards manage to keep their body temperature fairly constant by behavioural adaptations. They bask in the sun and absorb heat, when their body temperature drops below the comfort zone, but move into shade, when the ambient temperature starts increasing. Even snakes also show basking during winter months.
  3. Since they are ectothermic, this kind of behaviour saves them from extreme temperatures.
  4. Many smaller animals show burrowing behaviour to adapt to the temperature extremes.
  5. Some species burrow into the sand to hide and escape from the heat.
  6. Migrations shown by the birds and mammals are also behavioural responses for adapting to severe winter temperatures.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "Answer the following questions in detail." from Organisms and Populations→Organisms and Populations — all question types→BIOLOGY STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

What is the ozone shield and why is it important? Name the gases that cause stratospheric ozone depletion.
→
How are solid wastes disposed of?
→
On a visit to a Hill station, one of your friends suddenly became unwell and felt uneasy.
  1. List two symptoms, you would look for, to term it to be due to allergy.
  2. Explain the response of the body to an allergen.
  3. Name two drugs that can be recommended for immediate relief.
→
Distinguish between Parasitism and Mutualism
→
Name the stage of human embryo at which it gets implanted. Explain the process of implantation.
→
Rahul introduced Ronit to his uncle and told him that Ronit is pursuing a course in biotechnology in America.
His uncle had never heard of this term earlier and was curious to know about this term. Ronit pointed towards a big tree at the base of which were present numerous tumour-like structures and said that this is the example of natural biotechnology:
  1. What is biotechnology?
  2. How these crown gall tumours are formed?
  3. What are the values shown by Rahul's uncle?
→
What are the functions of-
  1. Methylated guanosine cap?
  2. Poly-A 'tail' in a mature RNA?
→
Explain Genetic code is Non-overlapping.
→
  1. Explain the significance of 'palindromic nucleotide sequence' in the formation of recombinant DNA.
  2. Write the use of restriction endonuclease in the above process.
→
Explain as to how protection of biodiversity hot spots alone can reduce up to 30% of the current rate of species extinction.
→