Question

Which of the following is true for all amphibians? (1)All have tail (2) Excretion by kidneys (3)Alimentary canal and urinary and reproductive dhoogs tracts open into different chambers to the exterior hauo (4)Heart is three-chambered with two ventricles

Answer 1

Answer:

all have tails.....

its hidden in humans.

Answer 2

The option which is true for this question is option 2: Excretion by kidneys.

• Amphibians are organisms who can live on terrestrial as well as aquatic environmnet.
• There are cetains characteristics that are common in all amphibians but some are different in terms of anatomy and physiology.
• In all amphibians, the excretory organ is kidney through which excretion process takes place.
• Having tail is not true for all amphibians as some species of toads and frog are tailless.
• Alimentary canal, urinary and reproductive tract does not open into different chambers, rather it opens into one chamber.
• Amphibians have three-chambered heart, but it has one ventricle rather than two.
• Hence, option 2 is only true for all amphibians.

#SPJ3