The correct answer is option A, Cyanobacteria are photoautotrophs
Explanation:
Being photosynthetic and aquatic, Blue green algaes are considered to be the Cyanobacteria and they belong to the category of aerobic photoautotrophs. The common essentials required for their survival are water, carbon dioxide, inorganic substances and light. Photosynthesis is their principal mode of energy metabolism. They are considered as an important contributor of oxygen in the Earth’s atmosphere.
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
The answer is <span>Cyanobacteria are photoautotrophs.
</span><span>Cyanobacteria /saɪˌænoʊbækˈtɪəriə/, also known as Cyanophyta, is a phylum of bacteria that obtain their energy through photosynthesis. The name "cyanobacteria" comes from the color of the bacteria.</span>
If Anna’s doctor recommends getting 60% of her calories from carbohydrates, it means that (2000*.60) or 1200 calories should come from carbohydrates.
<span>If one gram of carbohydrate provides 4 calories of energy, then 1200 calories is equal to (1200/4) or 300 grams of carbohydrates Anna should consume each day.</span>
