Types of Animal Reproduction

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What is sexual reproduction in animals?
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Sexual reproduction is a process where two parents contribute genetic material to produce offspring with genetic variation.
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What are the main types of fertilization in animals?
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The main types of fertilization are internal fertilization and external fertilization.
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How does internal fertilization occur in animals?
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Internal fertilization occurs when sperm is deposited inside the female's body, where fertilization takes place.
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What is an example of an animal that uses external fertilization?
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Many fish species, such as salmon, use external fertilization.
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How does asexual reproduction differ from sexual reproduction?
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Asexual reproduction involves a single parent, producing genetically identical offspring, while sexual reproduction involves two parents.
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What is binary fission and which animals use this method?
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Binary fission is a form of asexual reproduction where an organism splits into two, used by unicellular organisms like some Protozoa.
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What is budding in terms of animal reproduction?
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Budding is a form of asexual reproduction where a new individual grows on the parent before detaching, seen in some cnidarians like hydra.
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Define parthenogenesis and give an example.
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Parthenogenesis is a type of asexual reproduction where an egg develops into an individual without fertilization, found in some insects like aphids.
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What is the role of gametes in sexual reproduction?
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Gametes are reproductive cells (sperm and eggs) that combine during sexual reproduction to form a new organism.
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How does genetic variation benefit species reproducing sexually?
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Genetic variation increases adaptability and survival chances in changing environments.
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Describe the role of oviparous animals in reproduction.
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Oviparous animals lay eggs, with embryos developing outside the mother's body; examples include birds and reptiles.
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What distinguishes viviparous animals in terms of reproduction?
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Viviparous animals give birth to live young, with embryos developing inside the mother's body, like mammals.
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What is hermaphroditism in the animal kingdom?
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Hermaphroditism is when an individual possesses both male and female reproductive organs.
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What is a reproductive strategy of amphibians?
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Many amphibians use external fertilization, laying eggs in water where larvae develop into adults.
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Why is animal reproduction important for biodiversity?
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Animal reproduction ensures species survival, genetic diversity, and ecosystem stability.
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