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Sexual reproduction and fertilisation
EduBook Organización
- 3291 visitas
Sexual reproduction in animals Most animals reproduce sexually: a new individual is created by the fertilisation of a female ovum by a male sperm. In nearly all species of animals, individuals are…
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Complete a summary. Animal reproduction
EduBook Organización
- 3219 visitas
Write the following words in the correct spaces: splitting oviparous asexual outside metamorphosis internal viviparous embryo ova sexually mother egg sperm external Animals can reproduce or asexually.…
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Asexual reproduction in animals
EduBook Organización
- 3128 visitas
1.1. Types of reproduction The type of reproduction seen in an organism is related to its complexity. The animals that have evolved the most, like vertebrates, reproduce sexually. In contrast, asexual…
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Sexual reproduction in animals
EduBook Organización
- 3077 visitas
2.1. How do animals reproduce sexually? In sexual reproduction in animals, a new organism is created by the union or fertilisation of two gametes from individuals of different sexes. This type of…
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Summaries - Plant reproduction
EduBook Organización
- 2758 visitas
1. Reproduction in flowering plants Most flowering plants reproduce sexually. Their sexual organs are in the flowers. In a flower the calyx and corolla, are the external protective parts, and the…
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Summaries - Animal reproduction
EduBook Organización
- 2707 visitas
1. Asexual reproduction in animals The type of reproduction seen in an organism is related to its complexity. The animals that have evolved the most, like vertebrates, reproduce sexually. In contrast,…
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Summaries - Animal reproduction
EduBook Organización
- 2044 visitas
1. Sexual reproduction and fertilisation Most animals reproduce sexually: a new individual is created when a sperm fertilises an ovum to form a zygote. There are two types of individuals, males and…
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Video: What is AIDS
Tiching explorer Organización
- 3367 visitas
AIDS is the most dangerous sexually transmitted disease. In this 3 minute video we have a brief look at what AIDS is, how the HIV virus is transmitted, and what we can do to protect ourselves against…
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Reproduction in flowering plants
EduBook Organización
- 1903 visitas
Some plant species reproduce asexually, but most plants reproduce sexually. A pollen grain fertilises the egg cell inside the ovule. The sexual organs of spermatophytes (flowering plants) are in the…
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