Chapter 28, Problem 28A

Summary Introduction

To hypothesize:

The behavior of tadpole’s larvae that theygather in clusters so close together that the group looks like a moving football in the water.

Introduction:

Amphibians are vertebrates that lives near or in water. They breathe and intake water through their skin. They also consist a special skin glands for producing proteins.

Explanation of Solution

Amphibians eggs are not amniotic, hence their eggs needs a place where they don’t dry out. The eggs of frogs are laid in water and are covered in a jelly-like substance. This jelly keeps the eggs moist and also protect them from predators.

  

Figure 1

Most of the amphibians lay eggs in huge number. Sometimes manyfrogs lay eggs in the same place only to ensure that al leastsome eggs will get fertilized and survive. The parenting of amphibians gets over once the eggs are laid.

Conclusion

Frogslay eggs in water with a cover of jelly-like substance in huge number to protect them from predators.