In gymnosperms, the outer tissues of the seed that aid in dispersal and the inner tissues that serve as a store of nutrients for the embryo are:.
a. both haploid.
b. haploid and diploid, respectively.
c. diploid and haploid, respectively.
d. both diploid.

Option-C

Explanation:

In gymnosperms, the embryo is formed after the fertilization needs nutrition. The nutrition in the gymnosperms is provided by the female gametophyte cells as these cells degrade to provide the nutrients. Since the female gametophyte is haploid in nature, therefore, is the correct answer.

The seed is formed after the fertilization has occurred therefore is considered the diploid structure. The outer structure which helps in the dispersal of the cell thus is considered the diploid structure.

Thus, Option-C is correct.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.

not too sure but maybe in the hot springs.