Give differences between:(A) Spermatogenesis | vedclass

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(N/A) Differences between Spermatogenesis and Oogenesis:SpermatogenesisOogenesis$(1)$ Occurs in the testes of males.$(1)$ Occurs in the ovaries of fem

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(N/A) Differences between Spermatogenesis and Oogenesis:

Spermatogenesis	Oogenesis
$(1)$ Occurs in the testes of males.	$(1)$ Occurs in the ovaries of females.
$(2)$ Meiosis of primary spermatocytes results in two equal haploid secondary spermatocytes.	$(2)$ Meiosis of primary oocytes is unequal,resulting in a large haploid secondary oocyte and a small first polar body.
$(3)$ Secondary spermatocytes undergo meiosis $II$ to produce four haploid spermatids.	$(3)$ The secondary oocyte undergoes meiosis $II$ to form an ovum and a tiny second polar body.
$(4)$ Spermatids undergo spermiogenesis to become mature spermatozoa.	$(4)$ The ovum does not require a maturation process like spermiogenesis.

Differences between Embryo development and Foetus development:

Embryo development	Foetus development
$(1)$ The stage from fertilization up to the first $8$ weeks is called the embryo.	$(1)$ The period from $8$ weeks after fertilization until parturition is called the foetus.
$(2)$ Characterized by rapid cell division (cleavage) and early differentiation.	$(2)$ Characterized by the growth and development of various organs and organ systems.
$(3)$ The placenta produces hormones like $hCG$,$hPL$,estrogen,and progesterone to support early development.	$(3)$ As birth approaches,hormones like oxytocin and prostaglandins are produced to facilitate parturition.

Give differences between:
$(A)$ Spermatogenesis and Oogenesis
$(B)$ Embryo development and Foetus development

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Give differences between:$(A)$ Spermatogenesis and Oogenesis$(B)$ Embryo development and Foetus development