Reproduction and Development
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Meiosis and Sexual Reproduction
is NOT sexual reproduction but makes it possible
mitosis vs meiosis (click here for a diagram)
Where does meiosis take place?
somatic vs. gonad
Why is meiosis called reduction division?
Chromosome number vs. diploid number
Diploid vs Haploid
why are haploid gametes necessary to maintain the chromosome number of the offspring?
How is spermatogenesis different from oogenesis?
external vs internal fertilization
watery environment (sperm motility)
number of gametes released (risk factor)
Examples of each
external vs internal development
structures necessary to provide for the developing embryo
external egg vs placental organisms
examples of internal and external developers (including non-placental mammals)
recognize structures of terrestrial egg and know their functions
shell, chorion, albumin, alantois, yolk/yolk sac, amnion, embryo
compare the above structures to extra embryonic tissues in placental mammals