Answer: Rock-forming mineral, any mineral that forms igneous, sedimentary, or metamorphic rocks and that typically, or solely, forms as an intimate part of rock-making processes.The minerals that form rock are: feldspar, quartz, amphiboles, micas, olivine, grenade, calcite, pyroxenes
Answer:
The correct answer would be D.Alveolar sacs are surrounded by thin capillaries where gases can be exchanged.
Alveoli are tiny sacs which form the site of gas exchange in the lungs.
The features of alveoli which help in gas exchange are:
- They increase the surface area in the lungs thus, more space is available for gas exchange.
- They have very thin walls, as thin as the thickness of a single cell only.
- They are surrounded by a bunch of thin capillaries which exchange gases with alveoli.
Answer:
Atomic Number
Explanation:
The atomic number gives you the number of protons in a given element.
If they are both albino there is no chance for them to have any other skin color because it is not in their genes. The phenotype gene is always going to be albino.
