Teen Biology Magazine May/June 2013 | Page 15

Budding

A bud forms at one specific site on an organism. The bud forms into a new organism and stays attached to the parent until it is mature enough to become an independent organism.

This happens when cells rapidly divide at one specific area to form buds.

1.Faster than sexual reproduction.

2.Can result in a large number of offspring at once.

3.Single parent needed.

4.Offspring is well adapted to the stable environment parents reproduced in.

5.Easily inherit and pass positive mutations (exact clone of parent).

1.No genetic diversity.

2.Easily inherit and pass negative mutations (exact clone of parent).

3.Can’t adapt to changes in environment.

4.Competition for food and space.

Fragmentation

A piece of an organism breaks off and the cells rapidly divide to form a new organism. The broken piece is then regenerated on the original organism.

This happens when the piece is broken off naturally or during an injury or other life threatening situation.

1.Faster than sexual reproduction.

2.Can result in a large number of offspring at once.

3.Single parent needed.

4.Offspring is well adapted to the stable environment parents reproduced in.

5.Easily inherit and pass positive mutations (exact clone of parent).

6.Can happen naturally or accidentally.

1.No genetic diversity.

2.Easily inherit and pass negative mutations (exact clone of parent).

3.Can’t adapt to changes in environment.

4.Competition for food and space.

How does your way of reproduction work?

When does this happen?

What are advantages to your reproductive strategy?

What are limitations to your reproductive strategy?

Internal Fertilization

The male gamete (usually called the sperm) fuses with the female gamete (usually called an egg or ovum) while it is still inside of the female. After undergoing fertilization, the gametes form a zygote inside the female.

This happens when the sperm is deposited into the female reproductive system, usually by some sort of sexual intercourse.

1.Genetic diversity.

2.Improved chances of not inheriting negative mutations.

3.Can adapt to changes in environment.

4.Stable environment for reproduction.

1.Two parents needed.

2.Slower than asexual reproduction.

3.Can produce very few offspring at once (1-2 usually).

http://faculty.uca.edu/johnc/planaria%20regeration.bmp

http://0.tqn.com/d/evolution/1/0/m/0/-/-/Hydra_oligactis.jpg

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