Class 12th Biology 2016 Set3 Delhi Board Paper Solution
Question 2
Suggest the breeding method most suitable for animals that are below average in milk productivity.
Answer
Outcrossing method of breeding is employed in animals that are below average in milk productivity. It is the mating of animals within the same breed but having no common ancestors on either side of their pedigree upto 4-6 generations.
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(a) Producers
(b) Primary consumers
(c) Secondary consumers
(d) Decomposers - Q:- Fill in the blanks.
(a) Plants are called as_________ because they fix carbon dioxide.
(b) In an ecosystem dominated by trees, the pyramid (of numbers) is _________ type.
(c) In aquatic ecosystems, the limiting factor for the productivity is _________.
(d) Common detritivores in our ecosystem are_________.
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