Answer:
d
Explanation:
i propose none of the above is the answer.
Answer:
field of genetics.
Explanation:
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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.
B. Organisms are selectively bred to create new species.
C. New species are crossed with each other to form many different organisms.
D. Different genetic variations in organisms are selected in different habitats.
Organisms pass on acquired traits to evolve into more advanced life forms. So correct option is A.
Charles Darwin in gave the theory of evolution in 1809-1882 that was based on natural selection which is survival of the fittest.
Based on Darwin's theory of evolution the best statement which explains that how it happen is because of the environment opted the one which is fittest of all and the one which is not will not survive or die.
For more information regarding natural selection, visit:
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B) The species has 16 sets of chromosomes per cell.
C) Each cell has eight homologous pairs.
D) During the S phase of the cell cycle there will be 32 separate chromosomes.
E) A gamete from this species has four chromosomes.
For a species with a chromosome number of 2n=16, each cell has eight pairs of homologous chromosomes. There are not 32 chromosomes, 16 sets, or four chromosomes in a gamete.
In biology, the chromosome number 2n=16 indicates that the organism is diploid and has 16 total chromosomes, which are organized into 8 homologous pairs. So, the correct answer is option C) Each cell has eight homologous pairs. The number 16 (2n) represents the total number of chromosomes, not how many sets there are, making option B incorrect. One should not interpret this to mean there are 32 chromosomes in total, so option A is also incorrect. During S phase of the cell cycle DNA replication happens, but this doesn't change the number of chromosomes, just the number of DNA molecules, therefore, option D isn't right. Lastly, a gamete (sex cell) from this species would have n=8, or half the number of chromosomes, contradicting option E.
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