Answer:
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Diatoms are made of silica (hydrated silicon dioxide)
Answer:
decreases competition between members of the two different butterfly populations.
Explanation:
The choice of different habitats may be beneficial for the populations of butterflies since it enables to both groups to survive and reproduce without the need to compete for limited resources (in this case, the host plants)
To describe a scientist as skeptical, they question existing ideas and a new hypothesis. skepticism is a valuable quality because it shows that scientists is good and open minded.
i hope this helps...