Members of kingdom Protista are primarily ………….

Options

A. photosynthetic
B. unicellular eukaryotes
C. aquatic
D. Both (B) and (C)

Answer

To answer the question "Members of kingdom Protista are primarily ………….," we will analyze the characteristics of the members of this kingdom step by step.

### Step 1: Understanding Kingdom Protista
- Kingdom Protista consists of a diverse group of organisms that are primarily unicellular eukaryotes. This means that they have a defined nucleus and other membrane-bound organelles.

**Hint:** Remember that Protista includes unicellular organisms with complex cellular structures.

### Step 2: Identifying the Types of Protists
- The members of Protista can be classified into different categories based on their nutritional modes:
- **Photosynthetic Protists:** Such as diatoms and dinoflagellates, which can produce their own food through photosynthesis.
- **Heterotrophic Protists:** Such as protozoans and slime molds, which depend on other organisms for food.

**Hint:** Distinguish between autotrophs (photosynthetic) and heterotrophs (depend on others for food) in Protista.

### Step 3: Aquatic Habitats
- Most members of the kingdom Protista are aquatic, meaning they thrive in water environments, including freshwater and marine ecosystems.

**Hint:** Consider the habitat of Protists when thinking about their distribution.

### Step 4: Analyzing the Options
- The options given in the question are:
1. Photosynthetic
2. Unicellular
3. Eukaryotes
4. Both B and C (Unicellular and Eukaryotes)

- Since members of Protista are primarily unicellular eukaryotes, the correct answer must include these characteristics.

**Hint:** Look for the combination of characteristics that best describes the primary nature of Protista.

### Step 5: Conclusion
- The correct answer is **Both B and C** (Unicellular and Eukaryotes), as members of the kingdom Protista are primarily unicellular eukaryotes, and while some are photosynthetic, not all members are primarily so.

**Final Answer:** Members of kingdom Protista are primarily **both B and C** (Unicellular and Eukaryotes).