Question

All of the following are characteristic of algae EXCEPT which ONE of the following?

They may be unicellular or multicellular.
They are currently classified as plants.
Most are photoautotrophs.
Some produce harmful toxins.
They mostly live in aquatic habitats.

Answer 1

This answer explains that algae are classified as protists, not plants, and that they can be unicellular or multicellular. It also mentions that most algae are photoautotrophs and live in aquatic habitats. However, it states that algae are not harmful.

Step-by-step explanation:

Algae include a wide range of organisms that can be unicellular or multicellular. They are currently classified as protists, not plants. Algae are mostly photoautotrophs, meaning they can produce their own food through photosynthesis. Additionally, some algae can produce harmful toxins. Most algae live in aquatic habitats.