Which of these is an example of a subsequent boundary? (1) A border separating two states is removed because the states are now one state.
(2) Straight lines or arcs are drawn on a map to show the border between two adjacent countries.
(3) A border is created dividing the North and South of a country because of conflict.
(4) A wall is built along an existing border to keep people from crossing it illegally.
(5) Steep mountains separated two regions before people settled in them.

What is a limitation of using a chemical formula, such as c6h1206, to represent a compound? the chemical formula does not show the types of elements that make up the compound. the chemical formula does not show how the atoms are connected to one another the chemical formula does not show the number of atoms of each element in a molecule. the chemical formula does not show the chemical symbols of the elements in the compound

Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.

Which organ controls breathing? lungs alveoli heart diaphragm