Bryophyte comprise of

Options

A. a sporophyte which is of longer duration
B. a dominant phase of sporophyte which is parasitic
C. a dominant phase of gametophyte which produces spores
D. a small sporophyte phase which is generally parasitic on the gametophyte

Answer

To answer the question "Bryophyte comprise of," we need to analyze the characteristics and life cycle of bryophytes step by step.

### Step 1: Identify the Main Components of Bryophytes
Bryophytes are non-vascular plants that include mosses, liverworts, and hornworts. They have two main phases in their life cycle: the gametophyte and the sporophyte.

**Hint:** Remember that bryophytes have a dominant gametophyte phase and a dependent sporophyte phase.

### Step 2: Understand the Dominance of the Gametophyte
In bryophytes, the gametophyte is the dominant phase. It is the green, photosynthetic part of the plant that is visible and carries out most of the plant's metabolic functions. The sporophyte is typically smaller and dependent on the gametophyte for nutrition.

**Hint:** The gametophyte is the main body of the bryophyte and is responsible for producing gametes.

### Step 3: Analyze the Sporophyte Phase
The sporophyte phase is usually attached to the gametophyte and derives nourishment from it. It produces spores through meiosis, which are then released to germinate and form new gametophytes.

**Hint:** The sporophyte is not the dominant phase; it is dependent on the gametophyte for sustenance.

### Step 4: Summarize the Life Cycle
The life cycle of bryophytes involves the alternation of generations. Spores produced by the sporophyte germinate to form new gametophytes, which produce gametes. When gametes fuse, they form a new sporophyte.

**Hint:** The life cycle alternates between haploid (gametophyte) and diploid (sporophyte) stages.

### Conclusion
Based on the above steps, we can conclude that bryophytes comprise a dominant gametophyte phase, a smaller sporophyte phase that is dependent on the gametophyte, and they reproduce sexually through water.

**Final Answer:** Bryophytes comprise of a dominant gametophyte and a dependent sporophyte phase.