Grade 5 - Animal Reproduction Flashcards
All living things reproduce. Animals can reproduce either _______ or ______.
asexually
sexually
Reproduction by one parent is called?
asexual reproduction
What are the different types of asexual reproduction?
fission
budding
fragmentation
Is a type of asexual reproduction that happens when one organism splits into two identical parts of the same size?
fission also called binary fission
Example of a fission?
A planarian flatworm
Is a form of reproduction wherein a small part of the body separates to form a new organism.
Budding
Sample of a budding reproduction.
Sponges, hydra
How do sponges reproduce through budding?
First, they form groups of cells called buds. When the buds break off from the parent, they develop into new sponges.
A form of asexual reproduction where a fragment of the parent breaks off and develops into an entirely new but genetically identical individual.
Fragmentation
Is the ability of an organism to regrow certain parts of its lost body parts.
Regeneration
Is a type of reproduction that involves fertilization of sex cells from two organisms?
Sexual reproduction
Is the fusion of the egg cell and the sperm cell from two individuals?
Fertilization
The fusion of the sperm and the egg forms a fertilized cell called?
zygote
Is an aquatic animal with stinging cells and a hollow body. These animals reproduce both sexually and asexually?
jellyfish
Animal fertilization can be done either _______ or _______.
externally or internally
Is a type of fertilization that is the union of the egg and the sperm cells outside the body?
External fertilization
Is a process wherein animals release a mass of egg cells and sperm cells into the water?
spawning
The larvae of frogs are called?
tadpoles
What do you call the mating position of the male and female frog?
amplexus
Animals that lay eggs, such as fish and frogs, are called?
oviparous
Other fishes, such as sharks, have eggs that develop inside the female’s body are called?
ovoviviparous
In other animals, fertilization takes place inside the body. This is called _______.
internal fertilization
Animals that reproduce through internal fertilization?
reptiles, birds and mammals
Insects go through a series of changes as they develop from eggs to adults. This series of changes is called ________.
metamorphosis
What are the types of metamorphosis?
complete and incomplete
Examples of insects that go through incomplete metamorphosis?
grasshoppers, crickets and dragonflies
The egg of a dragonfly hatches into a larva, which is called a?
nymph
Examples of insects that go through complete metamorphosis?
bees, wasps, butterflies and moths.
What are the growth stages of a complete metamorphosis?
the egg
the larva
the pupa
the adult
A wormlike larva is called?
caterpillar
The mosquito larva is commonly known?
wriggler
Are birds also oviparous?
Yes
The white part of the egg and a yolk that serves as food for the developing bird are called?
albumin
Keeping the eggs warm until they hatch is called?
incubation
How many days for incubation?
Incubation time may vary, depending on the type of bird. It may be as long as 80 days or as short as 12 days.
A chicken egg develops in how many days?
21 days.
Cats and dogs belong to a group of animals called ______. And they are viviparous.
mammals
Is viviparous means that they bear their young alive and feed them with milk? Their milk is produced from their mammary glands.
Yes
Mammals are grouped according to how their young develop. They are classified as ________, _________, and ________ mammals.
monotremes
marsupials
placental
A group of living mammals that lay eggs are classified as?
monotremes.
Examples of monotremes?
duck-billed platypus
echidna
Mammals with pouches on their abdomens are classified as?
marsupials
Examples of marsupials?
kangaroos
opossums
Mammals that are those whose young develop completely inside their mother’s body.
Placental
Is an organ that attaches the unborn young animal to the mother?
placenta
The young mammal is attached to the placenta by the ______.
umbilical cord
What do you call an animal that have both male and female reproductive organs?
hermaphrodites
Is it true that most snails and worms are hermaphrodites?
Yes