1. .

3. • the eggs are fertilized within the female reproductive tract
• internal fertilization requires copulatory organs
• the physical union between a male and a female’s
reproductive parts. It may or may not result in
successful fertilization.
• Animals that use internal fertilization specialize in the
protection of the developing egg

4.  Sexual
Reproduction
 Occurs in most animals
 Male animals have a special
structure to insert their
sperm into the female
 An egg (female cell)
combines with sperm (male
cell)

5. Pollination &
Fertilization
External
Fertilization
Internal
Fertilization
Occurs in which
organisms?
Plants
Aquatic animals
Most animals and
aquatic mammals
Occurs in which
environments?
Land
Water
Mostly land and
some water
Males and
females
touch/join?
No
No
Yes
Key Vocabulary
Pollen = male sex
cell
Stamen = male
flower structure
Pistil = female
flower structure
Sperm = male sex
cell
Egg/ova = female
sex cell
Sperm = male sex
cell
Egg/ova = female
sex cell

6. Internal Fertilization (in most
animals)

7.  Sexual
Reproduction
 Occurs in most animals
 Male animals have a special
structure to insert their
sperm into the female
 An egg (female cell)
combines with sperm (male
cell)

9. • the eggs are fertilized outside of the body
• occurs mostly in wet environments and requires both the male
and the female to release their gametes into their surroundings
(usually water)
1. it results in the production of a large number
of offspring
2. environmental hazards such as
predators greatly reduce the chance of
surviving into adulthood

10. External Fertilization (in many
aquatic animals)

11.  Sexual
Reproduction
 Occurs inside the water
 Eggs (female cells) are
released into the water and
sperm (male cells) are
released near the eggs
 Males and females don´t
need to touch each other

12. 
http://www.slideshare.net/portia201182750/unit-5animal-reproduction-and-development22608062?qid=9618d28f-e101-4400-a72ea753a668bd7c&v=qf1&b=&from_search=4

http://www.slideshare.net/mcodin22/animalreproduction-31836229?qid=9618d28f-e1014400-a72ea753a668bd7c&v=qf1&b=&from_search=1

http://www.slideshare.net/dindin04/animalreproduction?qid=9618d28f-e101-4400-a72ea753a668bd7c&v=qf1&b=&from_search=11