Sociable weavers are a species of bird found in Africa. All males of a colony work together to build a large nest that can house several hundred birds. This is an example of .

kin selection

Explanation: the sociable weavers are a species of birds in the weaver family found in southern Africa. Their unique feature is that they build large communal nests which may house over 100pairs, some with nestlings. It is arguably one of the most impressive structures constructed by any bird species. The cooperation exhibited in nest building has been linked to kin selection.

Kin selection is an evolutionary tactic which guarantees the survival of a species even at the expense of each individual's survival or reproduction. In colonies such as that of sociable weavers, social cooperation may replace kin recognition and the same principle applies. The weavers act as a collective unit and each nest may serve several generations of birds.

c8h10 is your answerr

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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