Answer:
structures include chloroplasts, the cell wall, and vacuoles.
Explanation:
because one has it and the other dose not
B. Clade 1 is ancestral to all the other clades
When the starfish were removed from the area as part of an experiment, the mussel population swelled and crowded out other species. The biodiversity of the ecosystem was drastically reduced. Payne's study showed that identifying and protecting keystone species can help preserve the population of many other species.
A scientific model is used to make a part of the world easier it could be use to explain something and make it understandable to learn. It is mainly use to provide a reference for other people by showing them a example and a experiment on how the that subject works. The main purpose of scientific models is "to explain something that cannot be experienced directly."
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