Question

mosses do not have true leaves because their leaf like structure lack
(a) starch in their chloroplast
(b) vascular tissue
(c) chlorophyll
(d) cellulose in their walls​

Answer 1

Answer:

(c) vascular tissue

They have leaf like part but it won't consider as true leaf until they have xylem and phloem.

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Answer 2

Answer:

(b) vascular tissue

Mosses do not have true leaves because their leaf like structure lack vascular tissue.

Explanation:

Mosses lack real leaves because vascular tissue does not exist in their structure that resembles a leaf. Lignified vascular tissue, capillary tissue with lignification mosses have some water-conducting cells, they lack the lignin-reinforced, empty cells that vascular plants use to convey water under intense pressure gradients. As a result, mosses can't grow very tall and have very little ability to transfer water. Non-vascular plants known as true mosses (Phylum Bryophyta) normally reach heights of $1$ to $10$ cm and are found clustered closely together to form carpet-like formations. Due to the absence of circulatory tissues, mosses are constrained in their ability to grow tall, relying instead on capillary action to transfer water vertically.

The group of plants known as bryophytes, which lack real circulatory tissues and share a variety of other primitive characteristics, includes mosses and liverworts. Additionally, although they have cells that carry out these general duties, they lack genuine stems, roots, or leaves. Mosses lack real leaves because of the absence of vascular tissues in their leaf-like structures.