BIO 1500 chapter 24
1. Fertilization can be internal or external (TRUE OR FALSE): ETRU
2. What are the 4 asexual reproduction methods, briefly explain each:: Binary Fission
(some by mitosis): A single organism divides into two identical organisms. Common in bacteria.
Budding: A new organism grows from a bud on the parent and eventually detaches.
Fragmentation: An organism breaks into parts, each of which can develop into a new organism.
Parthenogenesis: An egg develops into a complete individual without being fertilized
3. Budding is common in...
Fragmentation is common in...
Parthenogenesis is common in...: - corals and hydras
- sea stars
- plants (can also be seen in zoos if females have been isolated from males)
4. is the release of mature eggs at the midpoint of a female
cycle.: Ovulation
1/6
,5. : have both male and female reproductive parts
Invertebrates such as earthworms, slugs, tapeworms and snails: Hermaphrodite
6. External fertilization
• Usually in environments where eggs and sperm are released into
water
• required to allow the sperm to swim to reach the egg, and to
prevent gametes drying out
• Fertilized eggs in water provides opportunities for resulting
loss of offspring. Therefore, millions of eggs must be produced, and offspring
must mature rapidly: aquatic, Moist, predation
7. Internal fertilization:
2/6
, Adaptation in animals -> allowing sperm to reach egg despite dry
environment
• , fertilized eggs laid outside parent's body and develop there,
nourishment from the yolk
3/6
1. Fertilization can be internal or external (TRUE OR FALSE): ETRU
2. What are the 4 asexual reproduction methods, briefly explain each:: Binary Fission
(some by mitosis): A single organism divides into two identical organisms. Common in bacteria.
Budding: A new organism grows from a bud on the parent and eventually detaches.
Fragmentation: An organism breaks into parts, each of which can develop into a new organism.
Parthenogenesis: An egg develops into a complete individual without being fertilized
3. Budding is common in...
Fragmentation is common in...
Parthenogenesis is common in...: - corals and hydras
- sea stars
- plants (can also be seen in zoos if females have been isolated from males)
4. is the release of mature eggs at the midpoint of a female
cycle.: Ovulation
1/6
,5. : have both male and female reproductive parts
Invertebrates such as earthworms, slugs, tapeworms and snails: Hermaphrodite
6. External fertilization
• Usually in environments where eggs and sperm are released into
water
• required to allow the sperm to swim to reach the egg, and to
prevent gametes drying out
• Fertilized eggs in water provides opportunities for resulting
loss of offspring. Therefore, millions of eggs must be produced, and offspring
must mature rapidly: aquatic, Moist, predation
7. Internal fertilization:
2/6
, Adaptation in animals -> allowing sperm to reach egg despite dry
environment
• , fertilized eggs laid outside parent's body and develop there,
nourishment from the yolk
3/6
