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16.3 Flowers and Types of reproduction

female reproductive part of a flower pistil
male reproductive part of a flower stamen
stem-like structure of a stamen filament
top portion of a stamen anther
sticky top of a pistil stigma
the stem-like part of a pistil style
the bottom of a pistil ovary
What is the function of the ovary? produce eggs (ovules)
process of pollen from an anther contacting the stigma of a pistil pollination
union of a sperm nucleus and an egg nucleus fertilization
What must happen after pollination before fertilization can occur? Sperm nuclei must travel down the pollen tubes and into the ovary
a structure that developed from the ovary of a flower; it protects seeds and can assist in dispersal fruit
How do flowers promote their own pollination? bright petal colors, unique aromas, patterns on petals, open funnel-like shape
What will a fertilized egg (ovule) develop into? a seed
reproduction with one parent, in which the offspring are identical to the parent asexual reproduction
reproduction with a male and female sex cells (sperm and egg cells)- offspring is not identical to either parent sexual reproduction
examples of asexual reproduction budding (Hydra), binary fission (amoeba, bacteria, etc), regeneration (worms, etc)
advantages of asexual reproduction convenient - only one parent; takes less energy/investment
disadvantages of asexual reproduction cannot improve the quality of the species - always identical; more difficult to adapt to changing environment
examples of sexual reproduction pollination and fertilization of flowers to produce seeds; mating of animals, even hermaphrodites
what is a hermaphrodite? an animal with both male and female parts
Created by: jenhaugen01