Types of Animal Reproduction

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What is sexual reproduction in animals?

Sexual reproduction is a process where two parents contribute genetic material to produce offspring with genetic variation.

What are the main types of fertilization in animals?

The main types of fertilization are internal fertilization and external fertilization.

How does internal fertilization occur in animals?

Internal fertilization occurs when sperm is deposited inside the female's body, where fertilization takes place.

What is an example of an animal that uses external fertilization?

Many fish species, such as salmon, use external fertilization.

How does asexual reproduction differ from sexual reproduction?

Asexual reproduction involves a single parent, producing genetically identical offspring, while sexual reproduction involves two parents.

What is binary fission and which animals use this method?

Binary fission is a form of asexual reproduction where an organism splits into two, used by unicellular organisms like some Protozoa.

What is budding in terms of animal reproduction?

Budding is a form of asexual reproduction where a new individual grows on the parent before detaching, seen in some cnidarians like hydra.

Define parthenogenesis and give an example.

Parthenogenesis is a type of asexual reproduction where an egg develops into an individual without fertilization, found in some insects like aphids.

What is the role of gametes in sexual reproduction?

Gametes are reproductive cells (sperm and eggs) that combine during sexual reproduction to form a new organism.

How does genetic variation benefit species reproducing sexually?

Genetic variation increases adaptability and survival chances in changing environments.

Describe the role of oviparous animals in reproduction.

Oviparous animals lay eggs, with embryos developing outside the mother's body; examples include birds and reptiles.

What distinguishes viviparous animals in terms of reproduction?

Viviparous animals give birth to live young, with embryos developing inside the mother's body, like mammals.

What is hermaphroditism in the animal kingdom?

Hermaphroditism is when an individual possesses both male and female reproductive organs.

What is a reproductive strategy of amphibians?

Many amphibians use external fertilization, laying eggs in water where larvae develop into adults.

Why is animal reproduction important for biodiversity?

Animal reproduction ensures species survival, genetic diversity, and ecosystem stability.