The characteristics that allow reptiles to successfully live and reproduce on land are:

1. Amniotic eggs: These eggs have a hard shell that protects the embryo from drying out. They also contain a yolk that provides nutrients for the developing embryo.

2. Kidneys that only excrete small amounts of water: This allows reptiles to conserve water, which is crucial for survival in dry environments.

3. Improved lungs and circulatory capacity: Reptiles have lungs that are more efficient at extracting oxygen from the air than the simple lungs of amphibians. They also have a more advanced circulatory system that allows for better oxygen distribution throughout the body.

4. Tough, scaly skin: The skin of reptiles is covered in scales made of keratin, which helps to prevent water loss and provides protection from predators and the environment.

External fertilization and respiration through the skin are not characteristics that allow reptiles to live and reproduce on land. These are more common in aquatic and amphibious animals.

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The characteristics that allow reptiles to successfully live and reproduce on land are:

1. Amniotic eggs: These eggs have a hard shell that protects the embryo from drying out. They also contain a yolk that provides nutrients for the developing embryo.

2. Kidneys that only excrete small amounts of water: This allows reptiles to conserve water, which is crucial for survival in dry environments.

3. Improved lungs and circulatory capacity: Reptiles have lungs that are more efficient at extracting oxygen from the air than the simple lungs of amphibians. They also have a more advanced circulatory system that allows for better oxygen distribution throughout the body.

4. Tough, scaly skin: The skin of reptiles is covered in scales made of keratin, which helps to prevent water loss and provides protection from predators and the environment.

External fertilization and respiration through the skin are not characteristics that allow reptiles to live and reproduce on land. These are more common in aquatic and amphibious animals.

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The characteristics that allow reptiles to successfully live and reproduce on land are:

1. Amniotic eggs: These eggs have a hard shell that protects the embryo from drying out. They also contain a yolk that provides nutrients for the developing embryo.

2. Kidneys that only excrete small amounts of water: This allows reptiles to conserve water, which is crucial for survival in dry environments.

3. Improved lungs and circulatory capacity: Reptiles have lungs that are more efficient at extracting oxygen from the air than the simple lungs of amphibians. They also have a more advanced circulatory system that allows for better oxygen distribution throughout the body.

4. Tough, scaly skin: The skin of reptiles is covered in scales made of keratin, which helps to prevent water loss and provides protection from predators and the environment.

External fertilization and respiration through the skin are not characteristics that allow reptiles to live and reproduce on land. These are more common in aquatic and amphibious animals.

Select all the characteristics that allow reptiles to successfully live and reproduce on land.Multiple select question.amniotic eggskidneys that only excrete small amounts of waterexternal fertilizationimproved lungs and circulatory capacityrespiration through the skintough, scaly skin

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