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The taxa that contains the smallest number of species is Genus. The levels of classification from largest to smallest is Kingdom, Phylum, Class, Order, Family, Genus, and Species.
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species genus family order class phylum kingdom
Domain Kingdom Phylum Class Order Family Genus Species
Nothing is known of Euclid's family.
The smallest possible family would consist of two members. There are millions of families with that build, though.
There are 2^5 = 32 outcomes possible for a family of 5 children.
No husband or children. She has a brother and a sister.
She is the youngest of a family of 14 children.
He does not have any Children or a wife. But he does have a Mother, his Brother Shannon Leto, and a step-Family.
Your grandmother's brother is your children's great-granduncle (or great great uncle). They are his great-grandnieces and great-grandnephews.
Yes, he had four. One by his first wife and three by his second.
None. He had no children and had one older brother.
There are only two children in the Jagger family, Mick and his brother Chris.
He is the fourth of five children in the Lynch family.
No. They are not blood relatives, which an immediate family member is. I.e. Mom, dad, brother, sister
No wife, no children. He was assumed to be a homosexual. It's possible that there are descendants. He wasn't known to have a brother of sister but he was born by unknown parents. They may have had other children who had children who had children etc.