16 Reproduction

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Last updated 9:29 AM on 6/8/26
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13 Terms

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Define asexual reproduction

Production of genetically identical offspring from one parent

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Advantages of asexual reproduction?

Fast, no mate needed, many offspring

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Disadvantages of asexual reproduction?

No variation, vulnerable to disease and environmental change

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Define sexual reproduction

Fusion of nuclei of two gametes producing genetically varied offspring

5
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Advantages of sexual reproduction?

Variation increases survival chances

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Disadvantages of sexual reproduction?

Requires two parents slower more energy

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What is pollination?

Transfer of pollen from anther to stigma

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What is fertilisation in plants?

Fusion of pollen nucleus with ovule nucleus

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Conditions needed for germination?

Water oxygen suitable temperature

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Adaptive features of sperm cells?

Flagellum, mitochondria, acrosome, enzymes

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Adaptive features of egg cells?

Energy store jelly coat

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Function of placenta?

Exchange nutrients, oxygen wastes between mother and fetus

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How is HIV transmitted?

Sexual contact, blood, shared needles, mother to baby