Answer:
Red algae - acquired plastids by secondary endosymbiosis
Explanation:
Red algae are believed to have undergo a primary endosymbiosis event. Then a second endosymbiosis event created a large group known as heterokonts. During the primary endosymbiosis event red algae acquire their plastids.
<span>When there is no oxygen, or the organism cannot use oxygen for respiration.
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Cholera, its a water borne disease.
<span>A. the current hypothesis of the evolutionary relationships between organisms.</span>
