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internal is in and external is out fertilisation
External. Internal devices would be something like a CD Drive, while an external device is a keyboard or mouse for example.
external is thunder
No, the frog is an example of external fertilization.
scientists classify organisms into groups based on internal and external features.
The difference between an external stimulus and an internal stimulus is that an external stimulus is a stimulus that comes from outside an organism. But an internal stumulus is a stimulus that comes from inside an organism. An example for an external stimulus can be that when you are cold, you put on a jacket. An example for an internal stimulus is that when you feel hungry, you eat food.
internal external not internal external not
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its internal
Internal means inside e.g. organs. External means outside e.g. features, lips, skin etc.
internal is in and external is out
Is a salmon internal or external?