Nitrogen fixation a. is the process where nitrogen is converted to a usable form b. is accomplished by plants when they break down soil c. occurs as a result of photosynthesis d. none of the above

a. is the process where nitrogen is converted to a usable form

Explanation:

Nitrogen fixation is a process by which the soil bacteria converts the atmospheric forms of nitrogen such as nitrates, nitrites and ammonia so that these forms can be easily absorbed by the plants and utilized for their growth and development. These forms of nitrogen are used by the plants for the synthesis of proteins which are necessary for cellular metabolism and growth.

helicase, i think thats it

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.