bio 115 exam 3 (cycles!)
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13 Terms
what is nitrogen fixation?
taking nitrogen from the atmosphere and converting it to ammonia and ammonium to be used.
what two domains of life are responsible for archea and bacteria?
bacteria and archea
energy ___ through an ecosystem
flows
nutrients ___ through an ecosystem
cycle
zygotic life cycle
zygote goes from n to 2n
sporic life cycle
in algae and plants, alternates between 2n and 1n
isogamy
gametes equal in size
oogamy
gametes not equal
which is bigger oogamy or isogamy?
oogamy
iteroparous
organisms reproduce multiple times throughout their life
semelparous
organisms reproduce only once in their lifetime
antheridium
male reproductive in mosses ferns and gymnosperms
archegonia
female reproductive parts in mosses, ferns, and gymnosperms