Answer:
Metabolic wastes or excretements are substances left over from metabolic processes (such as cellular respiration) which cannot be used by the organism (they are surplus or toxic), and must therefore be excreted.
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Answer:
Vertical communication is the communication where information or messages flows between or among the subordinates and superiors of the organizational.
Horizontal communication is the transmission of information between people, divisions, departments or units within the same level of organizational hierarchy. You can distinguish it from vertical communication, which is the transmission of information between different levels of the organizational hierarchy.
Explanation:
Answer:B
Explanation:Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle.
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