The appendicular skeleton includes the bones of the limbs and their girdles. Of the options provided, the femur, humerus, and clavicle are all parts of the appendicular skeleton. The sternum, however, is part of the axial skeleton, making it the correct answer to the question.
The appendicular skeleton consists of the bones of the upper and lower limbs, as well as the bones that anchor these limbs to the axial skeleton, which includes the skull, the vertebral column, and the thoracic cage. The appendicular skeleton includes the bones of the arms (such as the humerus), the shoulder girdle (such as the clavicle), the legs (such as the femur), and the pelvic girdle.
However, the bone mentioned in options a), b) and c) are all part of the appendicular skeleton. The sternum, option d), is part of the axial skeleton, not the appendicular one. So, it is the right answer to the question. The sternum, or breastbone, forms the middle part of the front of the rib cage and is located in the center of the chest.
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The Sternum is not part of the appendicular skeleton, but of the axial skeleton. The other options, Femur, Humerus, and Clavicle, are all parts of the appendicular skeleton.
The question asks which bone is not part of the appendicular skeleton, with options being a) Femur, b) Humerus, c) Clavicle, and d) Sternum. The appendicular skeleton is primarily composed of the bones of the pectoral and pelvic limbs and girdles. In the options provided, the Sternum is not part of the appendicular skeleton, but rather, it is part of the axial skeleton which includes the skull, spinal column and thoracic cage, whereas the Femur, Humerus, and Clavicle are all part of the appendicular skeleton.
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evidence
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I believe the correct answer is FALSE.
The heart is an organ located at the center of the chest in the thoracic cavity and functions to supply blood to and from tissues giving the tissues oxygen and nutrients while taking away carbon dioxide and waste products. It is divided into 4 chambers and 2 chambers are separated by a muscular wall that prevents mixing of the blood.
Blood enters the heart via the vena cava which is divided into the superior vena cava that recieves blood from the upper region of the body that includes the head, neck and chest while the inferior vena cava recieves blood from the lower extremeties that includes the legs, the abdomen, the pelvic region and the thighs. The blood is deposited into the right atrium and is de-oxygenated. When it is deposited into the right atrium, the change in volume of the atrium and the expansion causes the valve to open and allow the de-oxygenated blood to flow into the right ventricle. The right ventricle then pumps the blood that is de-oxygenated to the lungs via the pulmonary artery which is the only artery that pumps de-oxygenated blood. In the lungs, carbon dioxide is removed and oxygen added to the blood and is taken to the left atrium which pumps the oxygenated blood to the left ventricle and then the left ventricle pumps the oxygenated blood to the rest of the body. The blood is then again taken through the body via the capillaries and the veins pick up the blood that has been removed of oxygen and added with carbon dioxide and transport the blood back to the heart via the vena cava. It enters the right atrium via both the inferior and superior vena cava and the de-oxygenated blood is circulated again to the lungs for oxygenation from the left ventricle.
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Level: High School
Subject: Biology
Topic: The Circulatory System
The statement “the right ventricle transports oxygenated blood to lungs” is false.
Further Explanation:
Heart of humans have four chamber namely right and left atrium also, right and left ventricle. The main purpose of heart is to pump blood throughout the body. Due to this constant beating of heart a pressure is maintained in the body which helps in the flow of the blood.
The heart receives the deoxygenated blood from the body parts. This blood reaches the right atrium by means of superior and inferior vena cava. The blood from right atrium is pushed to the right ventricle. So, the right ventricle always has deoxygenated blood. This blood is then pushed to the lungs by the means of pulmonary artery into the lungs.
This blood then gets oxygenated by the means of fusion through capillaries and returns back to the heart specifically, to the left side. This blood is then pumped to the organ systems where it provides the tissues with oxygen.
Important note-
a. The right side of the heart always has deoxygenated blood.
b. The left side of the heart has oxygenated blood.
Therefore, the statement that the right ventricle of the heart has oxygenated blood is not true.
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Answer Details:
Grade: Middle School
Subject: Biology
Chapter: Human Physiology
Keywords:
Heart, ventricle, atrium, right atrium, left atrium, right ventricle, left ventricle, oxygenated blood, deoxygenated blood, pulmonary artery, SA node, lungs, oxygenation of blood.
Answer:
D) subdivides the prokaryotes into two different domains
Explanation:
The three domain system is based on differences in the ribosomal DNA of cells (16 S rRNA). In the three-domain system, Organisms are classified into three domains, namely:
Archaea and bacteria prokaryotes while Eukarya are the eukaryotes. Therefore, the three domain system sub-divided prokaryotees into two different domains.
Before the three-domain system, the five kingdom classification was popular, this is where plants (plantae), animals (animalia) and fungi were classified into their own Kingdoms.
The three-domain system of biological classification categorizes life into Bacteria, Archaea, and Eukarya. It does not separate plants, animals, and fungi into domains, but includes them in Eukarya. This system subdivides prokaryotes into Bacteria and Archaea, recognizing eukaryotes as a monophyletic group.
In the three-domain system of biological classification, life is categorized into three major domains: Bacteria, Archaea, and Eukarya. This system does not separate plants, animals, and fungi into separate domains but includes them within the Eukarya domain. The primary distinction in this system is that it subdivides the prokaryotes into two different domains - Bacteria and Archaea. Furthermore, the three-domain system recognizes eukaryotes as a monophyletic group, meaning they are viewed as a group consisting of an ancestor and all its descendants.
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c. Cenozoic era
b. Paleozoic era
d. Devonian era