A.Variation
B.Monophyletic origin
C.Mutation
D.None of these
Related Mcqs:
- Gastrula is the stage of the embryonic development of frog in which:
- Animal repeat their racial history during their embryonic development is the theme of:
- The zygotes of all metazoans are single celled and quite comparable with the bodies of simple protozoans. This fact indicates that:
- Weismann stated that a multicellular body is divisible into somaplasm and germplasm which separate at early embryonic life. Therefore only link between these will be:
- All the four limbs in a tetrapod are basically equal and similar. If their digits are webbed mode of locomotion will be :
- Gastrula is a stage in the the development of frog in which embryo possesses:
- In most triploblasts after embryonic development the three layers are represented as___________??
- The stages in the development of a tree are:
- A complex of several species and communities in various stages of succession maintained under similar climatic conditions is known as:
- Archenteron is a cavity found in which of the following stages of frog’s development:
