Discuss the modes of development of mammals.

Question

22 Jan 2025

Answer :

Word Count : 487

Mammals exhibit diverse modes of development, reflecting their evolutionary adaptations to different ecological niches. Their reproductive strategies are generally classified into three major categories based on the structure and function of their reproductive systems: monotremes, marsupials, and placentals. These modes of development are distinguished by differences in gestation, embryonic development, and parental care.

Monotremes are egg-laying mammals, a primitive group that includes species such as the platypus and echidnas. In monotremes, fertilization is internal, but the development of the embryo begins ________ _______ ____ _____ ________ _______ _________ __________ _________.
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