CLASS 12 BIOLOGY ZOOLOGY EM ANSWER KEY MARCH 2018 - STR

CLASS 12 BIOLOGY ZOOLOGY EM ANSWER KEY MARCH 2018 - STR - S. THIYAGARAJAN M.Sc., M.Phil., B.Ed., Phone : 9944664846 DOWNLOAD
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Comments

Anonymous said…
For your concern ........ due to indigenous, sindhi got heat tolerance, tick resistance, disease resistance, fertility at higher temperatures, etc.

5.(a) assertion and reason are corrected. Reason is explaining assertion.

From Wikipedia, the free encyclopedia

Cow in Sindhi
Red Sindhi cattle are the most popular of all Zebu dairy breeds. The breed originated in the Sindhi province of Pakistan, they are widely kept for milk production across Pakistan, India, Bangladesh, Sri Lanka, and other countries.[3] They have been used for crossbreeding with temperate (European) origin dairy breeds in many countries to combine their tropical adaptations (heat tolerance, tick resistance, disease resistance, fertility at higher temperatures, etc.) with the higher milk production found in temperate regions. It has been crossed with Jerseys in many places, including India, the United States, Australia, Sri Lanka, etc.[4]