Answer:
endocrine system and Sympathetic nervous system;
Explanation:
Generally in Brazil, the biggest factor influencing racial categorization is directly linked to economic rather than physical characteristics. Brazil was the last country to abolish slavery in 1888, the country still has a strong racial problem, as most black people live in slums and suburbs. Despite being a racially mixed country, black people are still marginalized.
Producers want to charge prices that at least will return all their costs: the cost of production, compensation for the time they and their employees spend on the production, and the cost of material, but in an ideal case they want to charge more so that they can earn profits.
Answer:
Natural resources are things that exist without any actions from human-kind. This is something like wood or stone.
However artificial resources are things that are man-made. These are things such as paper.
C is the answer hope i helped