Answer:
The answer is A.
Explanation:
Adaptive immunity recognizes antigens of viruses.
The answer is C) selective breeding. This means that humans are deciding what to breed which means this is not a natural selection, but rather an artificial selection.
1 - V=150 cm3
2 - 180 divided by 150= 1.2 g/cm3
3 - The mass would stay the same on the moon as on Earth because mass is just how much matter is in an object. However, the weight would be different because the gravitational pull is weaker on the moon than it is on Earth.
4 - The density is greater than the density of water which is 1 g/cm3.
5 - No because one solid could be a heavier material than another solid.
9 - Mass: gram (g) or kilogram (kg). Volume: liter (L) or centimeter (cm). Density: g/cm3 or g/mL
Answer:
The sun ejected rocky material, which later went on to form the planets.
