Answer:
Oxygen-poor blood returns from the body to the heart through the superior vena cava (SVC) and inferior vena cava (IVC), the two main veins that bring blood back to the heart. The oxygen-poor blood enters the right atrium (RA), or the right upper chamber of the heart.
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Answer:
Transportation of essential gases an nutrients, waste and unwanted products
Explanation:
the key feature of circulation is transportation of essential gases and nutrients around the body of an organism, removes unwanted products of metabolism from the tissues, and carries these products to specialized excretory organs, if present.
Answer:
salivary glands, liver, gallbladder, and pancreas.
Explanation:
Explanation:
Adolescent sexuality or also known as teenage sexual behavior is a stage of human and children development in which teenagers and adolescents are experiencing sexual feelings and they are also exploring them and those are two main ideas and basic facts about it.
Teenagers are experiencing sexual feelings, emotions, sexuality, and more.
