Describe the structure of haemoglobin and explain how its 3 dimensional structure is achieved to enable it to carry oxygen molecules.

The fact that haemoglobin have a 'dip-like' sort of thing in the centre, allows them to carry more oxygen because of its increased surface area.

Also, haemoglobin are small and flexible meaning that they can squeeze through the smallest capillaries and deliver oxygen.

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.