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bio exam 3 > Sexual Reproduction > Flashcards

Sexual Reproduction Flashcards

1
Q

What is internal fertilization?

A

When sperm are deposited directly into female where it unites with the egg inside the female body

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2
Q

What is embryonic development?

A

When an embryo uses yolk within an egg as nourishment

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3
Q

What is Oviparity?

A

Development in an egg that is OUTSIDE of the body

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4
Q

What is Ovoviviparity?

A

Development in an egg that stays INSIDE the body

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5
Q

What is Viviparity?

A

When embryonic development takes place within the mother

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6
Q

What is external fertilization?

A

When the sperm and egg unite outside of the parent’s body

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7
Q

What are the 3 phases of early embryonic development?

A
  1. Cleavage 2. Gastrulation 3. Organogenesis
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8
Q

What happens during the Cleavage (1st) stage?

A

A zygote divides into separate sections

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9
Q

What happens during the Gastrulation (2nd) stage?

A

Cells begin to fold withing leading to the digestive tube being created

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10
Q

What does Organogenesis lead to?

A

Development of the neural tube which leads to creation of brain and spinal cord

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bio exam 3 (5 decks)

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