1. C
2. B
3. C
4. A
5. D
6. B
7. D
8. D
9. C
10. A
Answer:
Each villus, in turn, has thousands of even smaller projections called microvilli (singular: microvillus).
Explanation:
The villi contain capillaries, which are tiny blood vessels. Nutrients are absorbed into these capillaries across the surfaces of the villi and microvilli. Because there are millions of these tiny projections, they greatly increase the surface area for absorption.
Obsidian is produced when lava cools very quickly. The lava coo ls so quickly that no crystals can form. When people make glass they melt silica rocks like sand and quartz then cool it rapidly by placing it in water. Obsidian is produced in nature in a similar way.
Disposing their waste into the water bodies!
Hope I helped
Answer:
A novel gene , glomulin (GLMN) in which 40 different mutation.