Types of Animal Reproduction

Question 1

True or False??

Most animals CAN reproduce both asexually and
sexually.

Answer 1

True

Question 2

Asexual reproduction produces _____ while sexual reproduction
produces ___

Answer 2

genetically identical copies (ie. clones); genetically unique offspring.

Question 3

______ reproduction

makes ____ of the parent.
Only a ___ is required
the process is ___ than in sexual reproduction.
is beneficial when ___.

Answer 3

Asexual
identical copies (clones)
single parent
much quicker
resources are abundant

Question 4

___reproduction
involves the __ of a female’s egg by a male’s sperm
____ to find a mate, requires courtship rituals, nesting, parenting skills, etc.
results in ___ or offspring
provides much of the ___ required for evolution
and adaptation.

Answer 4

Sexual
fertilization
takes more time
genetically unique individuals
genetic variation

Question 5

Give the 5 Examples of Asexual repro and 4 ex in Sexual repro

Answer 5

Asexual (Budding; Fragmentation; Polyembryony; Regeneration; Parthenogenesis/virgin birth)

Sexual (Monoecious/Hermaphrodites animals; Dioecious animals; Protandry; Sexual Dimorphism; )

Question 6

A very common type of asexual
reproduction especially in colonial animals

Answer 6

Budding:

Question 7

In _____ a new offspring begins as an outgrowth
of the parent and may either remain attached
and form a colony or break away and begin an
independent life.

Answer 7

budding

Question 8

Some animals spontaneously break
into many separate pieces which then regrow into
a complete animal.

Answer 8

Fragmentation:

Question 9

A type of asexual
reproduction in which the embryo or larva
(resulting from sexual reproduction) then clones
itself into separate individuals.

Answer 9

Polyembryony (twinning):

Question 10

This process is most commonly used
not as a form of reproduction but to replace
missing or damaged parts.

Answer 10

Regeneration:

Question 11

are those containing both
male and female reproductive organs.

Answer 11

Monoecious Animals (Hermaphrodites):

Question 12

About 15% of animals, especially those that are
______, tend to be
hermaphrodites.

Answer 12

sessile (nonmotile) or parasitic

Question 13

These are organisms that
produce either male or female reproductive
organs and gametes but never both at the same
time.

Answer 13

Dioecious Animals:

Question 14

is the ability in some animals to switch
their sex based on environmental cues such
as changes in temperature.

Answer 14

Protandry:

Question 15

Sometimes it is impossible to
distinguish the male from the female of a species
by outward appearance.

Answer 15

Sexual Dimorphism:

Question 16

this process only
regularly occurs in nonhuman animals, both
vertebrates and invertebrates.

Answer 16

Parthenogenesis (‘virgin birth’):

Question 17

In these cases the unfertilized egg is able to
develop even though it has not been fertilized
by a sperm.

Answer 17

Parthenogenesis