Pulmonary artery carry blood from the right ventricle of the heart to the lungs for oxygenation.
I think the kind of choices would be primary or secondary source: and this would be a secondary source:
a primary source would be the journals where the results were published and the secondary would be the tv program that used those reports as a primary report!
so the answer is secondary source!
Answer:
sorry have not learned that yet
Explanation:
False, because most organisms decompose fairly quickly after they die. For an organism to be fossilized, the remains usually need to be covered by sediment soon after death. hope this helps :))
4 billion years ago the temperature was much higher due to repeated volcanoes and hot gases present in the atmosphere. There weren't any live forms on earth. ... The atmosphere had a different concentration of gases on the earth. There were no life sustaining gases.
