Algae growing on animal bodies and shells are called

Options

A. Epizoic
B. Epiphytic
C. Sea Lettuce
D. Parasitic

Answer

**Step-by-Step Solution:**

1. **Understanding Algae**: Algae are simple, photosynthetic organisms that belong to the kingdom Plantae. They can perform photosynthesis, which means they use sunlight to produce their own food. This makes them autotrophic.

2. **Identifying the Growth Environment**: The question specifically asks about algae that grow on animal bodies and shells. It is important to note that these algae do not derive nutrients from the animals; instead, they simply use the animals for space and shelter.

3. **Evaluating Options**:
- **Parasitic**: This option is incorrect because algae do not parasitize animals. They do not take nutrients from their hosts.
- **Epiphytic**: This term refers to organisms that grow on plants, not animals, so this option is also incorrect.
- **Sea Lettuce**: This is a type of green algae but does not specifically refer to algae growing on animals, making this option incorrect as well.

4. **Correct Answer**: The correct term for algae that grow on animal bodies and shells is **epizoic**. This term specifically describes organisms that live on the surface of animals.

5. **Example**: An example of epizoic algae can be seen in koala bears, where green algae may grow on their fur, helping them camouflage in their green surroundings.

**Final Answer**: Algae growing on animal bodies and shells are called **epizoic**.

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