After germination the megaspore give rise to

Read the following paragraph and fill in the blanks with appropriate words :- In pteridophytes the main plant body is ____(A)______which bears sporangia that are subtended by leaf-like appendages called ______(B)____. The sporangia produce spores by ______(C)_______ and after germination of spores, they give rise to photosynthetic gametophytes called ______(D)_________. Choose the correct option :-

Read the following paragraph and fill in the blanks with appropriate words :- In pteridophytes the main plant body is ____(A)______which bears sporangia that are subtended by leaf-like appendages called ______(B)____. The sporangia produce spores by ______(C)_______ and after germination of spores, they give rise to photosynthetic gametophytes called ______(D)_________. Choose the correct option :-

Read the following paragraph and fill in the blanks with appropriate words :- In pteridophytes the main plant body is ____(A)______which bears sporangia that are subtended by leaf-like appendages called ______(B)____. The sporangia produce spores by ______(C)_______ and after germination of spores, they give rise to photosynthetic gametophytes called ______(D)_________. Choose the correct option :-

Plerome gives rise to

Dermatogen gives rise to

Ectoderm give rise to

The three germinal layers of the gastrula give rise to

Calyptrogen gives rise to