They are considered to be the most primitive and are surely the first of the vertebrates?

Related Mcqs:

1. Which of the following vertebrates have a fish-like body?

   A. Reptiles
   B. Aves
   C. Amphibians
   D. Mammals.

2. Out of 92 naturally occurring chemical elements how many are considered as bio-elements?

   A. 6
   B. 16
   C. 26
   D. 15

3. Viruses are considered living organisms because__________?

   A. They can be crystallized
   B. They occur in plants and animals
   C. They are microscopic
   D. They contain DNA and can be reproduced

4. Out of 92 naturally occurring chemical elements how many are considered as bio-elements__________?

   A. 6
   B. 16
   C. 26
   D. 15

5. Amphibians are considered to be evolved from___________?

   A. Newts
   B. Varanope
   C. Dipnoi
   D. Hagfishes

6. An isolated virus is not considered living since it________________?

   A. Separates in to two inner parts
   B. Can not metabolize
   C. Rapidly looses its Genome chemical inert
   D. Is coated with an air tight shield

7. Which of the following marine fishes are considered direct descendents of fresh water ancestors?

   A. Hagfish
   B. Jelly Fish
   C. Star Fish
   D. Bony fishes

8. With different chemical arrangements and formation Of complex molecules, the life emerges on the level of the ?

   A. Cells
   B. Tissues
   C. Organs
   D. Organ System

9. __________ is essential for the formation of hemoglobin.

   A. Calcium
   B. Iron
   C. Water
   D. Carbohydrates

10. Which of the following cell organelles is absent in animal cells and present in a plant cell?

    A. Cell wall
    B. Cytoplasm
    C. Vacuoles
    D. Mitochondria

    Submitted by: Nayab Idrees