SCIENCE
ZOOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
gills
|
|
|
carnivore
|
|
|
tail
|
|
|
legs
|
Detailed explanation-1: -Tadpoles have gills which help them breathe underwater. As they grow into an adult frog, they will lose their gills and develop lungs.
Detailed explanation-2: -Tadpoles and some aquatic amphibians have gills like fish that they use to breathe.
Detailed explanation-3: -Tadpoles have gills, but they don’t usually provide enough oxygen for them to survive, so most tadpoles also have lungs and breathe air as a back-up. But during the earliest period of their lives, tadpoles are too small to break through the water’s surface to breathe.
Detailed explanation-4: -Presence of gills in the tadpole of frog indicates that frogs evolved from gilled ancestors. Tadpoles look like fish, and they breathe under the water using gills, as fish do.
Detailed explanation-5: -A tadpole’s eyes are on the side of his head. As he develops into an adult frog, the eyes move to the top of his head. Most frogs have large eyes, placed to let them see to the sides and behind without moving.