sexual and asexual reproduction in animals

sexual reproduction

It involves the union of gametes—an egg cell from a female, and sperm cell from a male to produce an offspring. (the male & female gametes (sex cells) combine to form a new individual)

reproduction

is the process of producing another organism of its own kind

internal fertilization

The fertilization of an egg cell takes place inside the parent’s body. (eggs fertilized inside the body)

external fertilization

when fertilization takes place outside the parents body. (eggs fertilized outside the body)

asexual reproduction

Another individual is produced from a parents own body part. (a parent makes an identical copy of themselves.)

Fission/Binary Fission
Budding 
Regeneration
Fragmentation
Parthenogenesis

the types of asexual reproduction

Binary Fission or Fission

a process when a parent splits its polyp or body into 2 identical new organisms. (a cell splits into 2)

Budding

occurs when a parent grows a bud on its main body. similar to fission but no splitting. an outgrowth breaks off from its mother parent. (sponges)

Regeneration

an animal divides into fragments. the fragment then develops into a new organism that is identical to the severed animal. A completely new individual develops from a piece of the parent from which it was detached. (echinoderms)

Fragmentation

a body of a parent breaks into distinct pieces, then each piece can produce an offspring. (planarians)

Parthenogenesis

an egg that has not been fertilized develops into an individual.

copulation

the process of transferring male reproductive cells into a female reproductive organ is called __________.

animal reproduction

Animals need to reproduce to preserve their kind. An animal has either a reproductive system or a female reproductive system.

hermaphrodites

animals have both male and female reproductive system

eggs and sperm

The important components in the process of reproduction are the ________. These reproductive cells are called gametes.

gametes

eggs and sperm

gonad

The gland that produces gametes is called __

sperm

a male gamete

epididymis

coiled tube lying stop the testis where the sperm is stored

scrotum

external sac that holds the testis.

penis

external genital organ of males

egg cell

female gamete

ovaries

produces the egg cell

uterus

muscular organ used for containing the young and for nourishing