A technical advisor working for you formulated a vitamin premix for a large swine producer and instructed him to use the premix at 6 lb./ton of the diet for growing-finishing (50-150 lb) pigs. The producer has fed the premix to 5 sets of pigs and is complaining that growth performance is poor. He strongly believes that the pigs are deficient in something and is asking for monetary compensation. Given the recommended use level for the premix and its composition (below), determine whether the premix will meet the corresponding vitamin needs of the pigs. Based upon your findings, recommend to your supervisor whether the technical advisor should be promoted or terminated. Would you make any changes to the premix or its inclusion level in the diet or both?

Vitamin Concentration (per pound of premix)

A 1,500,000 IU
D3 1,500 IU
E 9,000 IU
K 420 mg
B12 15 mg
Riboflavin 1,570 mg
d-Pantothenic acid 8,500 mg
Niacin 150 mg

You decide that the introduction should also discuss the extremophiles that are referred to as the archaea. these single-cell organisms are considered "extremophiles" due to their ability to survive and reproduce in environmental conditions that would be hostile for most living organisms. archaea species have been isolated from highly acidic sulfur springs, ocean floor thermal vents with temperatures that exceed boiling, and subarctic ice well below freezing. while still considered to be prokaryotic, the archaea have numerous differences that place them apart from the bacteria. choose the characteristics that separate the archaea from other prokaryotic cells. select all that apply. view available hint(s) select all that apply. archaea lack true peptidoglycan in their cell walls. the morphology of the cell is rigid and is geometric in shape, similar to a sphere or cylinder. the cytoplasmic membrane lipids of archaea have branched or ringform hydrocarbon chains. all currently identified and characterized archaea have been linked as the causative agent to an animal or human disease.

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?