Question

Difference between xylem angiosperm and xylem gymnosperm

Answer 1

They are always wind pollinated unlike angiosperms which are much more diverse. Both angiosperms and gymnosperms have vascular systems consisting of xylem and phloem. The difference between them is that the vascular system is slightly less complex in gymnosperms than it is in angiosperms.

Answer 2

Explanation:

Given: d=3

We know:

an=a+(n−1)d

∴a20−a15=[a+19d]−[a+14d]

                     =5d

                     =5×3

                     =15

Hence, the answer is 15.

Given: d=3

We know:

an=a+(n−1)d

∴a20−a15=[a+19d]−[a+14d]

                     =5d

                     =5×3

                     =15

Hence, the answer is 15.

Given: d=3

We know:

an=a+(n−1)d

∴a20−a15=[a+19d]−[a+14d]

                     =5d

                     =5×3

                     =15

Hence, the answer is 15.