Germ Layers

Q.

What is Phylum?

Q. Aurelia is triploblastic.

1. False
2. True

Q.

_______ are first true vascular plants.

1. Bryophytes

2. Pteridophytes

3. Algae

4. Gymnosperms

Q. Which among the following options are correct for Pteridophyta?

1. Undifferentiated plant body
2. Includes dicots and monocots
3. Vascular cryptogams
4. Seedless plants

Q. Venus flytrap is a/an

1. Bryophyta
2. Pteridophyta
3. Gymnosperm

4. Angiosperm

Q. What are diploblastic animals? Explain.

Q. Organisms belonging to phylum Platyhelminthes have ___ layers of cells from which differentiated tissues can be formed.

1. 1
2. 2
3. 3
4. 4

Q.
In the given structure, the labelled part ‘X’

दी गयी संरचना में नामांकित भाग ‘X’

1. Forms fruit after fertilization
   
   निषेचन के पश्चात फल बनाता है
2. Fuses with male germ cell to form zygote
   
   युग्मनज के निर्माण हेतु नर जनन कोशिका के साथ संलयित होता है
3. Receives pollen grains
   
   परागकण प्राप्त करता है
4. Shrivel off after fertilization
   
   निषेचन के पश्चात सिकुड़ जाता है

Q. why sieve tubes are absent in pteridophytes and gymnosperms?And what is used in place of sieve tubes in them?

Q.

The adaptability of pteridophytes can be best signified by_________. This is why it is also called as the 'Resurrection Plant'.

1. Cyathea dealbata

2. Equisetum

3. Selaginella lepidophylla

4. Selaginella heterosporous

Q. Maam there is a lot of confusion in difference B/w Homosporous and Heterosporous