Coursebook questions - page 44 Questions
1 Name the red pigment inside red blood cells that helps to carry oxygen,
2 Name the large blood vessel that carries blood from the heart to the lungs.
3 Using what you know about particle theory, explain how oxygen diffuses
from an air sac into the blood.
4 The walls of the air sacs and the capillaries are both very thin. Suggest
how this helps gas exchange to take place quickly.
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identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

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 diabetes mellitus;