Which term best describes a plant-like organism?

Which term best describes a plant-like organism?

• A. Algae
• B. Amoebas
• C. Microorganism
• D. Virus

Answer: (A)

Plant-like organisms use sunlight to make their own food, so they are often found in water and rely on photosynthesis. Algae fit this description well: they are photosynthetic and can be single cells or large chains of cells, forming the base of many aquatic ecosystems. They aren’t true plants, but they behave like plants in how they get energy from light. Amoebas, by contrast, are animal-like protists that move and eat by engulfing food; they don’t rely on photosynthesis. The term microorganism is broad and includes many tiny life forms, such as bacteria, fungi, and some protists, so it isn’t specific to plant-like traits. Viruses aren’t considered living cells on their own and do not carry out photosynthesis, so they don’t fit the plant-like description. So, algae is the best term to describe a plant-like organism.

Plant-like organisms use sunlight to make their own food, so they are often found in water and rely on photosynthesis. Algae fit this description well: they are photosynthetic and can be single cells or large chains of cells, forming the base of many aquatic ecosystems. They aren’t true plants, but they behave like plants in how they get energy from light.

Amoebas, by contrast, are animal-like protists that move and eat by engulfing food; they don’t rely on photosynthesis. The term microorganism is broad and includes many tiny life forms, such as bacteria, fungi, and some protists, so it isn’t specific to plant-like traits. Viruses aren’t considered living cells on their own and do not carry out photosynthesis, so they don’t fit the plant-like description.

So, algae is the best term to describe a plant-like organism.