How are dolphins and whales similar?
- ABoth have scales
- BBoth breathe air
- CBoth lay eggs
- DBoth are fish
Solution & Step-by-step Explanation
Dolphins and whales are aquatic creatures, but biologically they are mammals, not fish.
* They do not have scales (unlike most fish).
* They give birth to live young ones (viviparous) and do not lay eggs.
* Since they are mammals, they possess lungs instead of gills and must come to the water surface periodically to breathe atmospheric air through their blowholes.
Therefore, their main similarity among the choices is that both breathe air.
* They do not have scales (unlike most fish).
* They give birth to live young ones (viviparous) and do not lay eggs.
* Since they are mammals, they possess lungs instead of gills and must come to the water surface periodically to breathe atmospheric air through their blowholes.
Therefore, their main similarity among the choices is that both breathe air.