Answer:
Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today paleontologists can determine the age of fossils using methods like radiometric dating and categorize them to determine the evolutionary relationships between organisms.
Explanation:
Answer:
the ductus arteriosus is a normal blood vessel that connects two major arteries — the aorta and the pulmonary artery — that carry blood away from the heart. The lungs are not used while a fetus is in the womb because the baby gets oxygen directly from the mother's placenta.planation:
The correct answer is C) By growing a bud. Hope this helps.
Answer:
Supports giant impact hypothesis
• Models indicate early solar system had Mars-size leftover panetesimals
• Moon's composition is similar to Earth's mantle
• Moon has a low proportion of easily vaporized ingredients
True but not relevant to giant impact hypothesis
• Moon lacks active volcanoes
• Moon's distance is gradually increasing
• Moon has synchronous rotation (keeps same face to Earth)
Explanation:
Things to note
Models shed more light on the early solar system, the leftover planetesimals, that can cause giant impacts.
Observations of the Moon's composition reveals likelihood of formation in a giant impact, that could produce something similar to Earth's mantle layers and its low in easily vaporized ingredients (such ingredients remained gaseous and therefore would not have participated in the Moon's accretion).
