Reproduction: Chapter 46 Flashcards
Name the types of reproduction animals use
SI
HE
Asexual;sexual, hermaphroditism,separate sexes g external fertilization, internal fertilization
sexual reproduction
fusion of a sperm and an egg then forms a diploid zygote
Hermaphroditism
One animal produces both male and female gametes
Separate sexes
Male produces sperm,female produces eggs
External fertilization
An egg encounter sperm outsideof the female reproductive tract
Internal fertilization
Egg encounters sperm inside the female reproductive tract;embryo develops internally
What are the types ofsexual reproduction
Hermaphroditism,
separate sexes,
external fertilization,
internal fertilization
Asexual reproduction
Production of offspring without gamete fusion
Ex) budding, fission and fragmentation with regeneration
Parthenogenesis
Form of Asexual reproduction where one gamete creates it own embryo without the inclusion of another gamete
What controls reproductive cycles
Hormones and environmental cues
When does fertilization occur
When sperm and egg are both released outside the body or when sperm is deposited by the male into the female eggs
What type of fertilization is associated by fewer offspring but greater parental protection
Internal fertilization
Gonads produce
Gametes
Look @ diagram for female a male reproductive systems
Sperm is produced by
Testes
Where are testes located
Suspended outside the body in the scrotum
Ducts connect the…
The testes to the internal accessory gland and then to the penis
Human female reproductive system components
Labia, clitoris, vagina, uterus, oviducts and ovaries
Eggs are produced in
The uterus
Gauetogenesis
Gamete production
Spermatogenesis
Sperm production in males
Oogenesis
Egg production in females
Human spermatogenesis is…
Continuous and produces 4 sperm per melosis
Human oogenesis
Is discontinuous and cyclic, generating one egg per meiosis
