because its not vital to the survival of the individual but is essential to the survival of the species.
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what is the main reason for sexual reproduction?
Genetic diversity (varied characteristics that are a mixture of the parents)
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what are the functions of the male reproductive system?
production of testosterone and spermatoza
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what are the basic structures of the male reproductive system?
Testes, scrotum (scrotal sac), seminiferous tubules, epididymis, vas deferens, Prostate gland and seminal vesicle, penis
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Describe the Testes
produce sperm and is contained within the scrotal sac
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Describe the scrotum
suspended below abdomen containing the testes
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Describe the seminiferous tubules
sperm producing tubes in the testes
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Describe the epididymis
long coiled tube in testis and stores sperm
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Describe the Vas deferens
sperm duct carrying sperm from testes to penis
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Describe the prostate gland and the seminal vesicle
Produce nutritive secretions for sperm which compose part of semen
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Describe the penis
intromittent organ for sperm transfer to female
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what are the two main functions of the female reproductive system?
productions of the hormones oestrogen and progesterone and the production of ova and support and protection of the fertilized ovum/zygote/foetus until birth
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what are the basic structures of the female reproductive system:
womb; site of implantation and development of fertilised ovum
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Describe the Cervix
entrance to neck of uterus
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Describe the vagina
tube leading to cervix
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Describe the *****
entrance of vagina
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what animals have the testes in the body cavity (coelom)?
Reptiles and Birds
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in what animals is fertilisation internal and the male has a penis?
Mammals and Reptiles
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how does sperm transer occur in birds?
by cloacal apposition
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in what animals is ferzilisation external?
fishes and amphibians
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how does sperm transfer happen in this situation (male)?
sperm produced in the testes passes through the anterior kidney tubules and pass down the Archinephric Duct (ureter) to the Cloaca where they exit the body.
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in the females, how do the eggs exit the body?
eggs are ovulated from the ovary into the Coelom (body cavity). They then enter the coiled Oviducts and exit via the Cloaca (shared urogenital opening)
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Other cards in this set
Card 2
Front
What are the two gametes?
Back
Spermatozoa (sperm) and ova (egg)
Card 3
Front
what are 2 examples of hormones that they produce?
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