Question

n : indusium is found in 1. algae 2. cycas 3. fronds 4. pteris

Answer 1

Indusium is found in ferns .

Answer 2

Answer:

The correct answer of this question is option 4,pteris.

Explanation:

We all know that membranes are biological protective layers of different internal biological organs.

Similarly, indusium is the membranous protective layer of the sorus portion of a fern.

And pteris is itself a type of fern.

That's why the correct answer of this question is option 4.