TEKS 7.14B compare the results of uniform or divers offspring from sexual reproduction or asexual reproduction
Reproduction: Asexual vs. Sexual
____________________ is important for the survival of all living _______________.
Without a way to reproduce, __________ would come to an _________. There are two
types of reproduction, _______________and _______________.
Comparing sexual with asexual reproduction:
Sexual
§ Sexual reproduction involves
Definition
parent and results in an ___________
requires the sex cells of ______ parents.
duplicate of an organism.
from its parents.
§ Genetic ___________ allows the species
to ____________ to its surroundings.
§ “Good” traits are passed on and
strengthen the species which increases
their _______________ __________.
§ The fertilized egg can sometimes
_______________ in adverse conditions.
§ Requires _____ sets of sex cells (egg and
Disadvantages
§ Asexual reproduction involves ______
____________________ so it typically
§ The offspring will be _______________
Advantages
Asexual
§ Usually faster and _______________,
so a new plant or animal can colonize
an area more _______________.
§ A __________ does not have to be
found so no travel is involved which
saves _______________.
§ Less _______________ and more
_______________.
§ Can produce a large number of
_______________ very quickly.
§ The new organisms are genetically
sperm) usually produced by two parents
_______________ to their parent and
that must get together to
each other.
_______________.
§ Often _______________, more
§ _______________ does not occur.
§ Organisms with no _______________
_______________, and less reliable that
that cannot adapt may become
asexual reproduction.
_______________.
§ Plants and fungi that make
§ Most _______________ reproduce
sexually (fly, human, snake, frog).
§ All _______________ plants and those
Examples
that make _______________ reproduce
sexually. (daffodil, grass, rose, oak tree).
§ Fertilization may be _______________
(mammals, birds, reptiles) or
_______________ (frogs, fish).
_______________ (moss, ferns, mold,
mushrooms).
§ _______________ cells, which
reproduce by binary fission or
_______________ in two (amoeba,
bacteria).
§ Budding (spider plant, hydra).
§ Runners (grass, strawberries).
§ Fragmentation (planarians).
§ Regeneration (starfish).