What is the major disadvantage of external Fertilization ?
External environment is suitable for fertilization
Surrounding medium (water), enhance the chance of syngamy
Offspring are extremely vulnerable to predators
All of the above
Identify the events $(A, B, D$ and $E)$ in life of general reproduction
Which reproductive adaptation is characteristic of most terrestrial vertebrates but not of most aquatic vertebrates?
...... is the vital link that ensures continuity of species between organisms of one generation and the next generation
Select the incorrect pair :
Which organism do not have heterogametes?