Each of the male testes is composed of lobules, compartments which contain one to three seminiferous tubules each.
a. within these structures, cells undergo spermatogenesis, the production of sperm.
b. during this process, spermatagonia divide to produce primary (2n) spermatocytes.
c. after these spermatocytes move away from the outer wall and increase in size, they undergo meiosis to produce secondary spermatocytes with 23 chromosomes (n).
d. secondary spermatocytes undergo a second division to produce four spermatids also with 23 chromosomes each.

answer; i believe the correct answer is (a)0

answer: angiosperms

dicots

angiosperms are highly evolved plants, they produce seeds which are enclosed within in a carple. these are the largest group of plants on earth. they include trees, shrubs, herbs and small flowering plants. angiosperms exhibit a flowering stage in their life cycle. the flower serves the function of reproduction and fruit formation in majority of angiosperms. dicot is the term used to describe flowering plants that have two seed leaves. dicots are plants which develop seeds which split into two parts called cotyledons. each cotyledon contains one embryo.

here, a small purple flower development indicates that the plant belongs to angiosperms and having two embryonic leaves indicates it belongs to dicots.  

there are no options but this may your question,

leaves enable photosynthesis to occur. photosynthesis is the process by which leaves absorb light and carbon dioxide to produce glucose (food) for plants to grow. leaves are adapted to perform their function, eg they have a large surface area to absorb sunlight.

hope this !