The cuticle and stomata because both parts function to regulate water absorption and release for the plant.
Severe dehydration resulting in hypoperfusion of the placenta.
<h2>540 million years ago
</h2>
Paleozoic.
Era immediately follows Precambrian It lasted about 4.5 billion years.
When did abundant fossil evidence first appear in the geologic record.
540 million years ago.
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