Question

Q1 what are the characteristics of sub kingdom Phanerogams?
Q2 distinguish between monocots and dicots?
Q3 write a paragraph on your own words about the ornamental plants called ferns?
Q4 write the characteristics of the plants belonging to division Bryophyta?
Q5 Sketch label and describe the Spirogyra?

Answer 1

Q.2

Monocot

1. Monocots have 1 cotyledon
2. monocots have fibrous roots
3. monocots have hollow and weak stem
4. there are 3 parts in flower or multiple of 3
5. there is parallel venation seen in leaves

Dicot

1. Dicot have 2 cotyledon
2. they have well developed primary root (Tap Root)
3. They have strong and hard stem
4. there are 4 or 5 parts in flower or multiple of 4 or 5
5. there is reticulate venation in leaves

Q.4⇒

1. Bryophyta are known as the amphibians of the plantae kingdoms as they grow in moist soil but they need water for reproduction.In this way they can live in both land and water.
2. They are thalloid as they do not have any part like leaves,flowers,stem etc they just have structure like them
3. They do not contain any separate tissue for cunduction (xylem/pholem)
4. they reproduce by spore formation

pls prefer the text book for ex of bryophyta

Q.5

prefer textbook for diagram

exp;

1. Spirogyra belongs to the category of thallophyta
2. thallophyta do not have any well developed body part like leaves,stem,roots they just have structure like them