Which of the following does not occur in an aquatic ecosystem as a result of nutrient loading?
a.
acidification of the water
b.
algae growth as a result of eutrophication
c.
degraded quality of water for human and livestock consumption
d.
improved water habitats for human recreation

D

Explanation:

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.  

answer; both surfaces of the membrane are nonpermeable