Altruism is common in family groups because it enhances the survival and reproductive success of related individuals, thereby promoting the continuation of shared genes. This behavior, often referred to as kin selection, encourages family members to assist one another, as helping relatives can ultimately lead to the propagation of one's own genetic lineage. Additionally, the close genetic ties within family groups create a strong incentive for individuals to engage in selfless acts, as the benefits to relatives can outweigh the costs to oneself.
An antonym for altruism would be selfishness, egotism, or exploitive. A less negative antonym would be: "objectivism" as held by Ayn Rand and expounded in her book, "The Fountainhead". Philosophically speaking, the opposite of altruism is objectivism.
An example of her altruism was her generous, anonymous, donation to the homeless foundation in her city.
Primary social groups are the main groups to which people belong. A great example of a primary social group would be the family.
The most common rock forming mineral groups would be: silicates, carbonates, sulfates, sulfides, halides, and oxides.
The answer would be "Hinduism"
Altruism exists in populations because it allows populations to survive. The collective effort of the population allows them to gather more food and resources, and to protect itself, better than any of the members of the population would be capable of doing on their own.
in some cultures it is common for just one nomadic family group to travel together. However, not all cultures adhere to this grouping, so in some nomadic groups you can find members of several families traveling together.
I would say German Shepard or Labrador
Foxes frequently live in family groups and share what food they capture. Nothing would go to waste.
The most common rock forming mineral groups would be: silicates, carbonates, sulfates, sulfides, halides, and oxides.
It depends on the family however, they do not esteem women to be of much worth and often have very little respect for them. Islam culture is not what I would call the "ideal" family lifestyle.
"I think this would depend on the family and their support stucture, although the emotional and financial strain must be taken into account. I would suggest looking for support groups and others