Assuming negligible inbreeding and recombination loss, calculate the proportion of F1 hybrid vigor retained in advanced generations of each of the following composite beef breeds: RX3 (1/2 Red Angus, 3/8 Hereford, 1/8 Red Holstein)
Barzona (approximately 1/8 Hereford, 5/32 Angus, 3/8 Afrikaner, 5/16 Shorthorn, 1/32 Brahman) (1 pt)
What generalized statement can be made about the difference in retained vigor for these two composite groups?

Wetlands form where water and land meet. a lake with a wetland fringe can fill in with decayed plant and animal material to become a wet meadow. a pond can fill in to become a bog or fen. sediment can fill in a river marsh to become a swamp.flooding of coastal lowlands from rising sea levels has created broad coastal marshes that are protected from wave action by barrier islands or reefs. coastal wetlands also form when rivers deposit sediment as they reach the ocean. plants then take root and hold the soil firm against the forces of tides and waves.

What are the options?