Why is the cell membrane described as selectively permeable? 1.) substances are not allowed into the cell
2.) substances diffuse freely in and out of the cell
3.) some substances pass into the cell while others cannot
4.) some substances can move into the new cell but not out of the cell

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 sierra madre fault zone of southern california

. the san andreas fault california