chlorine because it has 7 electrons on the outer shell
I believe the answer is PREZYGOTIC isolating mechanisms
Answer:
1. Lianas - these are woody vines that have roots in the ground but climb up the trees to reach the sunlight. Their leaves and flowers grow in the canopy.
2. Tree trunks - these are tall and thin to allow trees to reach the sunlight.
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I think it will be B not fully sure