Diatoms contain chloroplasts that have four membranes. These four membranes are evidence of secondary endosymbiosis (Option c).
<h3>What is secondary endosymbiosis?</h3>
Secondary endosymbiosis is a hypothesis used to explain why diatom chloroplasts have four membranes.
According to this hypothesis, diatoms received different genes from distinct photosynthetic and non-photosynthetic ancestors.
The acquisition of genes of different ancestors led to diatoms having chloroplasts with four membranes.
Learn more about the endosymbiosis hypothesis here:
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Factories and automobiles
Hawaii are the more hotspots area of volcanos. occurs in the type of temperature
Explanation:
Melanin is the pigment which absorbs UV light and it is present in skin and gives black colour to it.As we can see africans usually have black skin as they have to face direct uv light.
Well, they are both deposited by glaciers, but the way they are deposited makes them different. Till is just sediment left by the ice, outwash is deposited by the running water coming off of the glacier. Your welcome! Don't for got to thank me!
