If someone tells you that scientific knowledge cannot be changed. How would you answer that statement. Use an example of how scientific knowledge has been changed.

Scientific knowledge can be changed.

Explanation:

For example, the Cell Theory. The Cell Theory has been changed over and over again, leading to what it is know. People didn't have microscopes when the cell theory was first discovered, so when microscopes came along, we found out more about cells and revised the cell theory.

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.  

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.