Abody of knowledge must be in order to be considered science.

The given blank can be filled with observable and testable.

Explanation:

A body of knowledge needs to be observable and testable so that it can be regarded as a science. It cannot be realistic, as if it is then one cannot learn anything innovative. It cannot be factual, as it needs to be functional, and it can also not be reliable as science can change, thus, it is to be observed and tested at each step.

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.