B. State whether each statement is true or false. 1. All living things have a specialized mechanism to exchange substances with their environment.
2. Osmosis involves the movement of solute molecules.
3. The cell membrane is a selectively permeable membrane.
4. Chemicals in the air diffuse until evenly distributed.
5. A concentration gradient occurs when particles are evenly distributed in a region.
6. Diffusion occurs in the lung at the site of gas exchange in the alveoli.
7. Plants obtain carbon dioxide for photosynthesis through their roots.
8. A small surface area increases the rate of diffusion.
9. The tonicity is the comparative differences between the concentration of two solutions.
10. Red blood cells fight against infections caused by pathogens in the body.

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.  

a chain link fence because there so tiny even my albino donkey can't get out