NGSS.MS-LS3-2

When a planarian (a type of worm) is cut in half, each half usually grows back into a complete worm over time. This situation most closely resembles 

• (1) asexual reproduction in which a mutation has occurred 
• (2) sexual reproduction in which each half represents one parent 
• (3) asexual reproduction of a single-celled organism 
• (4) sexual reproduction of a single-celled organism

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Why is sexual reproduction better than asexual reproduction?

• It gives an advantage to organisms to be different than the rest, if the environment changes.
• It is better for all organisms to be the same.
• It happens faster.
• It helps skin cells divide faster to heal wounds.

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NGSS.MS-LS3-2

True or False: Plants can reproduce Sexually or Asexually

• True

• False

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Requires two parents

• sexual

• asexual

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NGSS.MS-LS3-2

Many invertebrate animals, such as the hydra, reproduce asexually. What form of reproduction in this stage of the life cycle of the hydra is shown in the diagram? 

• binary fission
• budding
  
• fragmentation 
• vegetation propagation

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NGSS.MS-LS3-2

In mitosis cells are genetically _______, but in meiosis cells are genetically ______.

• diverse, identical
• identical, diverse/different

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Heredity

• a parents child or children

• the passing of traits from parents to offspring

• made of DNA

• organism's genetic make up

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NGSS.MS-LS3-2

When one diploid cell divides and makes four haploid sex cells:

• mitosis

• meiosis

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NGSS.MS-LS3-2

Certain species of whiptail lizards have only female individuals and no males. These lizards reproduce asexually. What is one disadvantage of asexual reproduction for these lizards?

• A new population can be established by a single individual in a relatively short period of time.

• All the members of a population are genetically very similar and less able to survive environmental changes.

• They are smaller than lizards that reproduce sexually.

• They are more likely to develop a variety of tail lengths.

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All of the following are advantages of asexual reproduction except ____________.

• produce varied offspring

• spread and colonize certain part of an area

• Reproduce without a mate

• produce a large number of offspring

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NGSS.MS-LS3-2