Animal reproduction

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Last updated 6:12 AM on 6/12/26
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18 Terms

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Types of reproduction

Sexual and asexual

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Sexual anisogamous

Combination of gametes to create individual

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How do spiders reproduce

Male spiders insert pedipalps into female vagina

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Dioecioous

Male female

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Pheremones

released by males to attract

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Courtship

Birds singing/dancing

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External fertalization

Releases gametes into water and they mix

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Internal fertilization

Direct insertion of penis into vagina

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Mammals

penis, testis, amnion, women get pregnant, internal fertilization

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Female reproductive system

Vagina → cervix → uterus

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Ovary cycle in women

Hormonal fluctuations in specific periods of fertility

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Uterus

Muscular organ of female

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Placenta

Vascular structure where fetus is nourished

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How many weeks for fully functional placenta

4 weeks Pa

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Mammary glands

Glands that produce milk to feed offspring

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Altricial

Helpless upon birth

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Precocal

Has some traits to help survive like walking

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What makes up milk in female mammals

Protein, fat, colostrum, lactoferrin