Question

Which one of the following characteristics is common both in humans and adult frogs?

• A. Nucleated RBC's
• B. Four – chambered heart
• C. Internal fertilization
• D. Ureotelic mode of excretion

Answer 1

The correct option is D

Ureotelic mode of excretion

The correct option is D.

Explanation of the correct option:

1. Frogs and humans both have the same vital organs.
2. Both of them have lungs, kidneys, stomachs, hearts, and other organs.
3. Frogs have substantially less complicated anatomy than humans but have equivalent organ structures overall.
4. Ureotelic mode of excretion is the excretion in which the excretory wastes of animals and humans are excreted in the form of urea.
5. This ureotelic mode of excretion is found in both frogs and humans.

Explanation of the incorrect option:

Option A:

1. Red blood cells with a cell nucleus are referred to as nucleated red blood cells (NRBCs).
2. Red blood cells in amphibians have a nucleus.
3. The mature red blood cells of humans have no nucleus.

Option B:

1. A three-chambered heart has been seen in much all reptiles and amphibians.
2. Cobras, tortoises, and even salamanders, for example, have three-chambered hearts.
3. Humans have four-chambered hearts.

Option C:

1. Internal fertilization has been the joining of either an egg or sperm cell inside the female body throughout sexual reproduction.
2. Internal fertilization takes place in humans.
3. A male organism's sperm fertilizes a female organism's egg outside of the female's body in a process known as external fertilization.
4. External fertilization occurs in frogs.

Final Answer: Ureotelic mode of excretion is common both in humans and adult frogs.