Podcast
Questions and Answers
Reproduction is essential for the continuation of a ______.
Reproduction is essential for the continuation of a ______.
species
The two modes of reproduction in animals are sexual and ______ reproduction.
The two modes of reproduction in animals are sexual and ______ reproduction.
asexual
In sexual reproduction, male and female reproductive parts produce ______.
In sexual reproduction, male and female reproductive parts produce ______.
gametes
The zygote develops into a new ______.
The zygote develops into a new ______.
Young ones of different animals include baby humans, kittens, and ______.
Young ones of different animals include baby humans, kittens, and ______.
The male reproductive organs include a pair of ______, two sperm ducts and a penis.
The male reproductive organs include a pair of ______, two sperm ducts and a penis.
Sperms produced by the testes have a head, a middle piece and a ______.
Sperms produced by the testes have a head, a middle piece and a ______.
The female reproductive organs include a pair of ovaries, oviducts and the ______.
The female reproductive organs include a pair of ovaries, oviducts and the ______.
In human beings, a single matured egg is released into the ______ by one of the ovaries every month.
In human beings, a single matured egg is released into the ______ by one of the ovaries every month.
In addition to the sperm, a human ______ is also classified as a single cell.
In addition to the sperm, a human ______ is also classified as a single cell.
The transformation of the larva into an adult through drastic changes is called __________.
The transformation of the larva into an adult through drastic changes is called __________.
The life cycle of a frog includes three distinct stages: egg, __________, and adult.
The life cycle of a frog includes three distinct stages: egg, __________, and adult.
The new individuals developing from the parent hydra are called __________.
The new individuals developing from the parent hydra are called __________.
Dolly was a healthy clone of the Finn Dorsett sheep and produced several offspring through normal sexual ______.
Dolly was a healthy clone of the Finn Dorsett sheep and produced several offspring through normal sexual ______.
A type of reproduction that involves only a single parent is called __________ reproduction.
A type of reproduction that involves only a single parent is called __________ reproduction.
The fusion of ovum and sperm is called ______.
The fusion of ovum and sperm is called ______.
The early developmental stage of frogs after hatching is known as __________.
The early developmental stage of frogs after hatching is known as __________.
Fertilisation that takes place outside the female body is called ______ fertilisation.
Fertilisation that takes place outside the female body is called ______ fertilisation.
The ______ divides repeatedly to give rise to an embryo.
The ______ divides repeatedly to give rise to an embryo.
Cloned animals are often found to be born with severe ______.
Cloned animals are often found to be born with severe ______.
Flashcards
Sexual Reproduction in Animals
Sexual Reproduction in Animals
A type of reproduction in animals where male and female reproductive parts produce gametes (sperm and egg). These gametes fuse to form a zygote, which develops into a new individual.
Gametes
Gametes
Special cells (sperm and egg) produced by the male and female reproductive organs in animals.
Zygote
Zygote
The cell formed by the fusion of male (sperm) and female (egg) gametes; the first cell of a new individual.
Sperm
Sperm
Signup and view all the flashcards
Reproductive organs
Reproductive organs
Signup and view all the flashcards
Male Reproductive Organs
Male Reproductive Organs
Signup and view all the flashcards
Sperm Production
Sperm Production
Signup and view all the flashcards
Sperm Structure
Sperm Structure
Signup and view all the flashcards
Female Gamete
Female Gamete
Signup and view all the flashcards
Ovary Function
Ovary Function
Signup and view all the flashcards
Metamorphosis
Metamorphosis
Signup and view all the flashcards
Asexual Reproduction
Asexual Reproduction
Signup and view all the flashcards
Larva
Larva
Signup and view all the flashcards
Tadpole
Tadpole
Signup and view all the flashcards
Budding
Budding
Signup and view all the flashcards
Dolly the sheep
Dolly the sheep
Signup and view all the flashcards
Cloning
Cloning
Signup and view all the flashcards
Genetic Identical
Genetic Identical
Signup and view all the flashcards
Study Notes
Reproduction in Animals
- Reproduction is essential for the continuation of a species
- Reproduction ensures the continuation of similar individuals
- Two modes of animal reproduction: sexual and asexual
Modes of Reproduction
- Animals reproduce sexually or asexually
- Young animals develop in different ways
- Examples: Human (baby), Cat (kitten), Dog (puppy), Hen (chick), Cow, Frog, Butterfly
Sexual Reproduction
- Involves the fusion of male and female gametes
- Male and female reproductive organs/parts differ
- Male reproductive organs: testes, sperm ducts, penis
- Female reproductive organs: ovaries, oviducts (fallopian tubes), uterus
- Sperms are produced in testes
- Ova are produced in ovaries
- Fertilisation: Fusion of sperm and ovum
- Fertilised egg (zygote) develops into an embryo
- Internal fertilisation: Takes place inside the female body (humans, cows, dogs, hens)
- External fertilisation: Takes place outside the female body (frogs, fishes, starfish)
Development of Embryo
- Fertilisation leads to zygote formation
- Zygote divides to become a ball of cells
- These cells form tissues and organs
- Embryo develops within the uterus or egg
- Embryo transforms into a foetus, recognisable as a baby.
Viviparous and Oviparous Animals
- Viviparous animals give birth to live young (humans, cows, dogs)
- Oviparous animals lay eggs (hens, frogs, butterflies, moths, fish)
- Frog eggs are laid with jelly-like protective layer in water.
- External fertilisation in oviparous animals
- Embryonic development usually occurs inside egg.
Asexual Reproduction
- Asexual reproduction involves only one parent
- Methods include budding (in hydra) and binary fission (in amoeba)
- Budding: New individuals develop as outgrowths from a parent.
- Binary fission: Division of a single cell into two identical cells.
Cloning
- Cloning: Producing an exact copy of a cell, living organism
- Dolly the sheep: First cloned mammal (produced by transferring a nucleus to an egg without nucleus)
Keywords
- Asexual, Binary fission, Budding, Eggs, Embryo, External fertilisation, Fertilisation, Foetus, Internal fertilisation, Metamorphosis, Oviparous animals, Sexual Reproduction, Sperms, Viviparous animals, Zygote
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
