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Questions and Answers
What is formed when an egg and sperm combine during fertilisation?
What is formed when an egg and sperm combine during fertilisation?
All eggs laid by female animals are fertilised and develop into new individuals.
All eggs laid by female animals are fertilised and develop into new individuals.
False
What is the term for the developing structure after the zygote that forms different tissues and organs?
What is the term for the developing structure after the zygote that forms different tissues and organs?
Embryo
The _____ gets embedded in the wall of the uterus for further development.
The _____ gets embedded in the wall of the uterus for further development.
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Match the following terms with their descriptions:
Match the following terms with their descriptions:
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What is the main purpose of IVF (in vitro fertilisation)?
What is the main purpose of IVF (in vitro fertilisation)?
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Test-tube babies are actually grown and developed in test tubes.
Test-tube babies are actually grown and developed in test tubes.
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What is the term used for fertilisation that occurs outside the body?
What is the term used for fertilisation that occurs outside the body?
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Fertilisation occurs in water for many aquatic animals, which is termed __________.
Fertilisation occurs in water for many aquatic animals, which is termed __________.
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Match the following types of fertilisation with their characteristics:
Match the following types of fertilisation with their characteristics:
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Why do fish and frogs lay eggs in large numbers compared to hens?
Why do fish and frogs lay eggs in large numbers compared to hens?
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Sperms swim towards the eggs in an aquatic environment during the fertilisation process.
Sperms swim towards the eggs in an aquatic environment during the fertilisation process.
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What are babies born through in vitro fertilisation commonly called?
What are babies born through in vitro fertilisation commonly called?
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What is the process called when a larva transforms into an adult through drastic changes?
What is the process called when a larva transforms into an adult through drastic changes?
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Human beings undergo metamorphosis.
Human beings undergo metamorphosis.
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What is the term used for the stage when the embryo's body parts such as hands, legs, and head are completely formed?
What is the term used for the stage when the embryo's body parts such as hands, legs, and head are completely formed?
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What are the three distinct stages in the life cycle of a frog?
What are the three distinct stages in the life cycle of a frog?
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The development of the embryo occurs entirely inside the female body for all animals.
The development of the embryo occurs entirely inside the female body for all animals.
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What happens after the embryo develops in oviparous animals?
What happens after the embryo develops in oviparous animals?
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Hydra reproduces through a method called __________.
Hydra reproduces through a method called __________.
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Match the following organisms with their type of reproduction:
Match the following organisms with their type of reproduction:
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Viviparous animals give birth to __________ young ones.
Viviparous animals give birth to __________ young ones.
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What is the initial cell formed upon fertilization called?
What is the initial cell formed upon fertilization called?
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Which stage in the frog's life cycle is primarily aquatic?
Which stage in the frog's life cycle is primarily aquatic?
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Buds in hydra are formed through sexual reproduction.
Buds in hydra are formed through sexual reproduction.
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Match the following types of animals with their reproductive methods:
Match the following types of animals with their reproductive methods:
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In which part of the female reproductive system does the embryo get embedded?
In which part of the female reproductive system does the embryo get embedded?
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What are the bulges that develop in hydra called?
What are the bulges that develop in hydra called?
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Embryos of viviparous animals continue to grow within an egg shell after fertilization.
Embryos of viviparous animals continue to grow within an egg shell after fertilization.
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What is the process called when a hydra reproduces by forming new individuals from buds?
What is the process called when a hydra reproduces by forming new individuals from buds?
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Amoeba reproduces through a process known as binary fission.
Amoeba reproduces through a process known as binary fission.
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Who successfully cloned the first mammal named Dolly?
Who successfully cloned the first mammal named Dolly?
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The type of asexual reproduction in amoeba involves dividing into two and is called __________.
The type of asexual reproduction in amoeba involves dividing into two and is called __________.
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From what type of sheep was the cell collected to clone Dolly?
From what type of sheep was the cell collected to clone Dolly?
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Dolly the sheep was cloned from a cell taken from a male Finn Dorsett sheep.
Dolly the sheep was cloned from a cell taken from a male Finn Dorsett sheep.
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What happens to the nucleus of the egg during Dolly's cloning process?
What happens to the nucleus of the egg during Dolly's cloning process?
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Which of the following statements is true about fertilisation in animals?
Which of the following statements is true about fertilisation in animals?
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Binary fission is a method of asexual reproduction.
Binary fission is a method of asexual reproduction.
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What is metamorphosis?
What is metamorphosis?
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The embryo gets embedded in the __________.
The embryo gets embedded in the __________.
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Match the following reproduction methods with their examples:
Match the following reproduction methods with their examples:
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Which of the following is a characteristic of a zygote?
Which of the following is a characteristic of a zygote?
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Define asexual reproduction.
Define asexual reproduction.
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Hydra reproduces by external fertilisation.
Hydra reproduces by external fertilisation.
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Study Notes
Reproduction in Animals
- Reproduction is essential for the continuation of a species
- Reproduction ensures the continuation of similar individuals, generation after generation
- Two modes of animal reproduction: sexual and asexual
- Modes of Reproduction in animals: sexual and asexual.
Modes of Reproduction
-
Sexual Reproduction:
- Involves fusion of male and female gametes (sperm and egg)
- Male reproductive organs: testes, sperm ducts, penis
- Female reproductive organs: ovaries, oviducts (fallopian tubes), uterus
- Gametes are produced that fuse to form a zygote, developing into a new individual.
- Internal fertilisation: fertilisation occurs inside the female body (e.g., humans, cows)
- External fertilisation: fertilisation occurs outside the female body (e.g., fish, frogs)
-
Asexual Reproduction:
- Involves a single parent
- Examples: budding (e.g., hydra), binary fission (e.g., amoeba)
Male Reproductive Organs
- Include a pair of testes (singular, testis), two sperm ducts, and a penis.
- Testes produce male gametes called sperms.
- Millions of sperms are produced.
- Sperm structure: head, middle piece, tail. Each sperm is a single cell.
Female Reproductive Organs
- Include a pair of ovaries, oviducts (fallopian tubes) and the uterus.
- Ovaries produce female gametes called ova (eggs).
- One matured egg is released into the oviduct monthly.
- Uterus is where the baby develops.
- Each egg is a single cell. Egg size varies amongst animal species.
Fertilisation
- Fusion of sperm and egg
- Internal fertilisation: occurs inside the female body
- External fertilisation: occurs outside the female body
Development of Embryo
- Fertilised egg (zygote) forms a ball of cells (embryo).
- Cells develop into tissues and organs (embryo).
- The embryo is embedded in the uterus wall for development.
- Embryo develops into a fetus with distinct body parts.
Viviparous and Oviparous Animals
- Viviparous animals: give birth to live young ones (e.g., humans, cows).
- Oviparous animals: lay eggs (e.g., hens, frogs).
Asexual Reproduction in Animals
- Budding: development of new individuals from the parent body (e.g., hydra).
- Binary fission: the parent organism divides into two identical organisms. (e.g., Amoeba).
Cloning
- Exact copy of a cell or complete organism.
- First mammal cloned was Dolly the sheep.
Reproduction and Life Cycles
- Transformations in organisms, such as tadpoles to frogs,
- Development of animals from eggs and embryos
- Different stages of animal development from young to adult
Additional notes
- The text mentions activities and projects related to observing reproduction in animals.
- The text includes diagrams and tables to illustrate the concepts.
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Description
Test your knowledge on the processes of fertilisation and the development of embryos. This quiz covers key concepts such as zygotes, IVF, and various types of fertilisation. Challenge yourself with matching terms and understanding biological processes related to reproduction.
