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  • When the heart of a frog is removed from its body, it continues to beat for a certain period of time. Which of the following statements best explains this phenomenon? 1. The heart of a fr

When the heart of a frog is removed from its body, it continues to beat for a certain period of time. Which of the following statements best explains this phenomenon?

1. The heart of a frog is auto-excitable.

2. Frogs are poikilothermic animals.

3. Frogs lack coronary circulation.

4. The heart of a frog is myogenic in nature.

Select the most appropriate option from the above statements.

 

Option: 1

 Only option 1 is correct


Option: 2

Options 2 and 3 are correct


Option: 3

Options 3 and 4 are correct


Option: 4

Only option 4 is correct


Answers (1)

best_answer

The phenomenon of a frog's heart continues to beat after being removed from the body can be explained by two statements:

Statement 3: The heart is "myogenic" in nature, meaning it can generate its own electrical impulses for contraction without external stimulation.

Statement 4: The heart is auto-excitable, which means it has the inherent ability to produce its own electrical activity.

Both statements support the observation that a frog's heart can sustain its beating even when isolated from the body. Hence, the correct answer is option 3.

 

Posted by

manish painkra

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