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The venous system of frog differs from that of a mammals in the presence of :-
  • a)
    Renal portal system
  • b)
    Hapatic portal system
  • c)
    Three superior venacava
  • d)
    hepatic vein
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
The venous system of frog differs from that of a mammals in the presen...
The venous system of frog differs from that of mammals in the presence of:

The correct answer is option 'A' - Renal portal system.

Explanation:

The venous system in frogs differs from that of mammals in several ways. One of the major differences is the presence of the renal portal system in frogs.

Renal Portal System:

The renal portal system is a unique feature of the circulatory system in frogs. It is a specialized network of blood vessels that connects the kidneys with the hind limbs. This system is absent in mammals.

Structure and Function:

The renal portal system in frogs consists of two renal veins, the renal portal veins, and the renal portal hearts. The renal veins carry deoxygenated blood from the posterior parts of the body, including the hind limbs, to the kidneys. The renal portal veins are a set of small veins that carry blood from the hind limbs to the kidneys. The renal portal hearts are specialized muscular structures that help propel the blood through the renal portal veins.

The renal portal system serves several functions in frogs:

1. Excretory Function: The renal portal system allows the deoxygenated blood from the hind limbs to directly reach the kidneys. This ensures efficient filtration and removal of metabolic waste products from the blood.

2. Thermoregulation: Frogs are ectothermic animals, meaning their body temperature is regulated by the external environment. The renal portal system helps in maintaining body temperature by allowing the blood from the cooler hind limbs to mix with the warmer blood in the kidneys.

3. Oxygenation: The renal portal system also aids in oxygenation of the blood. The kidneys receive oxygenated blood from the pulmonary veins and mix it with the deoxygenated blood from the hind limbs. This helps in maintaining an adequate oxygen supply to the body.

Overall, the presence of the renal portal system in frogs is an adaptation that enhances the efficiency of excretion, thermoregulation, and oxygenation in these animals. This unique feature sets the venous system of frogs apart from mammals.

Therefore, the correct answer to the given question is option 'A' - Renal portal system.
Community Answer
The venous system of frog differs from that of a mammals in the presen...
Renal portal system found in all living invertebrates except mammals.
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Directions: Read the passage and answer the questions that follow.There are two major systems of criminal procedure in the modern world—the adversarial and the inquisitorial. The former is associated with common law tradition and the latter with civil law tradition. Both systems were historically preceded by the system of private vengeance in which the victim of a crime fashioned his own remedy and administered it privately, either personally or through an agent. The vengeance system was a system of self-help, the essence of which was captured in the slogan “an eye for an eye, a tooth for a tooth.” The modern adversarial system is only one historical step removed from the private vengeance system and still retains some of its characteristic features. Thus, for example, even though the right to institute criminal action has now been extended to all members of society and even though the police department has taken over the pretrial investigative functions on behalf of the prosecution, the adversarial system still leaves the defendant to conduct his own pretrial investigation. The trial is still viewed as a duel between two adversaries, refereed by a judge who, at the beginning of the trial has no knowledge of the investigative background of the case. In the final analysis the adversarial system of criminal procedure symbolizes and regularizes the punitive combat.By contrast, the inquisitorial system begins historically where the adversarial system stopped its development. It is two historical steps removed from the system of private vengeance. Therefore, from the standpoint of legal anthropology, it is historically superior to the adversarial system. Under the inquisitorial system the public investigator has the duty to investigate not just on behalf of the prosecutor but also on behalf of the defendant. Additionally, the public prosecutor has the duty to present to the court not only evidence that may lead to the conviction of the defendant but also evidence that may lead to his exoneration. This system mandates that both parties permit full pretrial discovery of the evidence in their possession. Finally, in an effort to make the trial less like a duel between two adversaries, the inquisitorial system mandates that the judge take an active part in the conduct of the trial, with a role that is both directive and protective.Fact-finding is at the heart of the inquisitorial system. This system operates on the philosophical premise that in a criminal case the crucial factor is not the legal rule but the facts of the case and that the goal of the entire procedure is to experimentally recreate for the court the commission of the alleged crime.According to the passage, the inquisitorial system differs from the adversarial system in that

Directions: Read the passage and answer the questions that follow.There are two major systems of criminal procedure in the modern world—the adversarial and the inquisitorial. The former is associated with common law tradition and the latter with civil law tradition. Both systems were historically preceded by the system of private vengeance in which the victim of a crime fashioned his own remedy and administered it privately, either personally or through an agent. The vengeance system was a system of self-help, the essence of which was captured in the slogan “an eye for an eye, a tooth for a tooth.” The modern adversarial system is only one historical step removed from the private vengeance system and still retains some of its characteristic features. Thus, for example, even though the right to institute criminal action has now been extended to all members of society and even though the police department has taken over the pretrial investigative functions on behalf of the prosecution, the adversarial system still leaves the defendant to conduct his own pretrial investigation. The trial is still viewed as a duel between two adversaries, refereed by a judge who, at the beginning of the trial has no knowledge of the investigative background of the case. In the final analysis the adversarial system of criminal procedure symbolizes and regularizes the punitive combat.By contrast, the inquisitorial system begins historically where the adversarial system stopped its development. It is two historical steps removed from the system of private vengeance. Therefore, from the standpoint of legal anthropology, it is historically superior to the adversarial system. Under the inquisitorial system the public investigator has the duty to investigate not just on behalf of the prosecutor but also on behalf of the defendant. Additionally, the public prosecutor has the duty to present to the court not only evidence that may lead to the conviction of the defendant but also evidence that may lead to his exoneration. This system mandates that both parties permit full pretrial discovery of the evidence in their possession. Finally, in an effort to make the trial less like a duel between two adversaries, the inquisitorial system mandates that the judge take an active part in the conduct of the trial, with a role that is both directive and protective.Fact-finding is at the heart of the inquisitorial system. This system operates on the philosophical premise that in a criminal case the crucial factor is not the legal rule but the facts of the case and that the goal of the entire procedure is to experimentally recreate for the court the commission of the alleged crime.Which one of the following best describes the organization of the passage?

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The venous system of frog differs from that of a mammals in the presence of :-a)Renal portal systemb)Hapatic portal systemc)Three superior venacavad)hepatic veinCorrect answer is option 'A'. Can you explain this answer?
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