Flashcards in Satges Of Sexual Teproduction Deck (19):
What are the three stages?
What is mating
Members of opposite gender come together at certain times of the year to reproduce, during the most favourite time of the year for optimal chance for survival of offspring (baby)
What is fertilization?
Gametes come together to form a zygote which will form into a embryo
Only one sperm to combine with a ovum (egg)
Zygote will divide through mitosi to form a embryo
What are the two methods of fertilization?
Sperm and egg combine outside of the body: salmon milt/sperm
Advantages of external fertilization
Little energy wasted to find a mate,
Late numbers of offspring are produced
Disadvantages of external fertilization?
Unprotected eggs, most young will not survive
Internal fertilization! What is it
Occurs inside the body
Advantages of internal fertilization?
Greater parental care for developing embryo and young
Disadvantages of internal fertilization?
More energy used in care
First week of cell division
Hollow ball is formed after second week, stem cells start to differentiate
Forms into three layers
What is artificial inseminaton
Collecting sperm and injecting it into a female
What is in vitro fertilization? What
Eggs are removed from the ovaries and then mixed with sperm in a container (perry dish) the fertilized egg is hen inserted into the uterus
*test tube baby*
What is gamete intrafallopion transfer
Eggs are removed and mixed with sorry, the mixture is injected into the fallopion tube