Question

Integumented megasporangia first time developed in

Answer 1

Gynoecium is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. .... The ovule initially consists of a ...

Answer 2

Answer:

Gymnosperms

Explanation:

• Megasporangia are megaspore-bearing organ or ovules which develops into seeds after fertilization. These seeds are covered by a fruit wall within the fruit.

• The covering layer of ovules is called an integument. Thus ovules can be said as the megasporangium together with its protective outer covering or coat i.e.integumented megasporangium.

• Gymnosperms are flowerless, naked seeded plants. That means they bear an exposed seed that lacks any covering layer.

• Since gymnosperms were first seed plants, where the seeds are not encapsulated within ovaries, they are covered just by integuments.

Hence integumented megasporangia first time developed in gymnosperm plant groups.