Why would higher life expectancies lead to economic and social problems in a country

They said i have got a sign of tuberculosis what should i do

Food provides molecules that serve as fuel and building material for all organisms. plants undergo photosynthesis and make their own food. other organisms, like us and the horse seen above, are consumers and eat food. how do all organisms use food as fuel? be sure to include the name of the process in your answer. me.

What re the two main phrases of the cell cycle.