Answer:
pOH measures the concentration of Hydroxide ions.
Explanation:
The pOH content of bases is higher because they contain more Hydroxide ions compared to acids which contain more Hydronium or Hydrogen ions.
pH measures Hydronium or Hydrogen content, whereas pOH measures Hydroxide content.
Answer:
B
Explanation:
We need oxygen to breathe and water because there are oxygen particles in water.
Through the things they eat
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:
brainly.com/question/2957447