At what period of life do a girl is already capable of reproduction?

Which of these animals reproduce by external fertilization?

Does Zzish provide the best teacher dashboards on student performance?

The following pictures are examples of a food chain or a food web. Which picture describes a food chain in estuaries?

What is also known as fertilized egg?

Vas deferens is part of the male butterfly conveys sperm out from the testis.

Which organism does not produce an external egg as part of its life cycle?