Question

Name two desirable traits for variety improvement in poultry farming.
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Answer 1

HENS AND EGGS

Explanation:

The most recent common ancestor (MRCA) of all coronaviruses is estimated to have existed as recently as 8000 BCE, although some models place the common ancestor as far back as 55 million years or more, implying long term coevolution with bat and avian species.[37] The most recent common ancestor of the alphacoronavirus line has been placed at about 2400 BCE, the betacoronavirus line at 3300 BCE, the gammacoronavirus line at 2800 BCE, and the deltacoronavirus line at about 3000 BCE. Bats and birds, as warm-blooded flying vertebrates, are an ideal natural reservoir for the coronavirus gene pool (bats the reservoir for alphacoronavirus and betacoronavirus – and birds the reservoir for gammacoronavirus and deltacoronavirus). The large number of host bat and avian species, and their global range, has enabled extensive evolution and dissemination of coronaviruses.[38]