Which of the following vertebrates has the most simple st...
Which of the following vertebrates has the most simple structured heart?
reptile
fish
mammal
Amphibian
Correct answer is B
No explanation has been provided for this answer.
The order of evolution trends in plants is ...
Which of the following is NOT found in animal cell? ...
Which of the following combinations differentiates a bony fish from a cartilaginous fish? ...
The function of the absorption is performed by the structure labelled ...
What happens when the ciliary muscles of the eye contract? The ...
Mammals require a relatively high amount of carbohydrates because ...
When a Spirogyra cell is immersed in a salt solution more concentrated than its cell sap, it ...
Which of the following labelled structures is similar to the locomotory structure in Euglena? ...