--------------- is a species of photosynthetic macroalgae.

Correct option is A

Chlorophyta is a group of photosynthetic macroalgae commonly known as green algae. They are a major group of algae, found in both freshwater and marine environments, capable of performing photosynthesis. The algae in this group contain chlorophyll a and b, giving them their characteristic green color. Chlorophyta includes species like Udotea flabellum, which is a specific type of green algae, but the correct answer refers to the broader group of green algae.
Information Booster: Chlorophyta, or green algae, are a diverse group that includes both microscopic and macroscopic species. They are found in a variety of environments, such as oceans, freshwater, and even on land. They are significant contributors to photosynthesis in aquatic ecosystems and produce oxygen, much like higher plants. The group contains several well-known macroalgae like Codium and Udotea, which play a vital role in marine biodiversity.
Additional Knowledge:
· Pyrrophyta: This group includes dinoflagellates, which are mostly unicellular and not considered macroalgae.
· Udotea flabellum: While this species is a type of green algae (Chlorophyta), it is more specific, and the broader term "Chlorophyta" is the correct answer here.
· Euglenophyta: These are flagellated protozoans, and while they can photosynthesize, they are not considered macroalgae.