The significance of collisions of dust, rock, and ice during Earth’s formation was to modify the density of materials present on Earth.
This can be defined as the mass per unit volume of a substance or body.
Density = mass/volume
The collision of dust, rock, and ice modified the density of materials occurred during Earth’s formation.
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Answer: A: to modify the density of materials present on Earth
Explanation: good Bye :)
O B. Hominoids
OC. Prosimians
D. Monkeys
E. Apes
Answer:
C. Prosimians
B. Mesozoic
C. Paleozoic
D. Cenozoic
All veins are important because they carry blood throughout the body and all veins have a specific purpose/job to do to help the body function. Many veins take the deoxygenated blood...blood that doesn't have oxygen in them any more because it was used up...and transport it back to the heart where the heart pumps the deoxygenated blood to the lungs to become oxygenated...oxygen is put back into the blood.
here are two of the many veins in the body:
- pulmonary veins and other veins involved with the heart system/the functioning of the heart
-systemic veins: I believe this also deals with the heart but it can also deal with veins in the upper part of our body (includes: head, neck/throat area and chest area I believe). We also have veins in the lower part of the body (abdomen (area that contains organs/stomach area), legs, and whatever else falls under the lower part of the body.
I tried to keep this in simple terms from what I learned in biology. For example, within the veins in the abdomen there are more specific names to the veins and their function.