Most swiss starlings produce four to five eggs in each clutch. those producing fewer or more than this have
reduced fitness. which of the following terms best describes this?
a) artificial selection
b) directional selection
c) stabilizing selection
d) disruptive selection
e) sexual selection

Ans. (C). stabilizing selection.

Stabilizing selection is defined as a variant of natural selection that stabilizes a particular trait in a population on an average trait value (non-extreme trait value). It favors individuals with intermediate variants, instead of individuals having extreme traits.

The females, which lay 4-5 eggs in each clutch, are showing an average or intermediate trait, while the females, which produce fewer or more eggs than this are showing extreme traits. Hence, individuals with extreme traits will show reduced fitness due to stabilizing selection.  

Thus, the correct answer is option (C).

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.  

well, i believe that the answer is 2. : 3