Answer:
Formation. When the solar system settled into its current layout about 4.5 billion years ago, Earth formed when gravity pulled swirling gas and dust in to become the third planet from the Sun. Like its fellow terrestrial planets, Earth has a central core, a rocky mantle and a solid crust.
Answer:
Option D, has only a single opening
Explanation:
A gastrovascular cavity has only one opening. The food goes in and comes out of the same opening there by making it a two way digestive tract.
However, a digestive tube is a one way digestive tract where the food goes in from mouth (one end) and comes out of anus (second end) . It is also called as alimentary canal
Hence, option D is correct
I think the correct answer from the choices listed above is option A. The structure that is found in both prokaryotic cells and eukaryotic cells is the cytoplasm. Other choices given might not be present in either cell. Hope this answers the question.
120.701 km/h is the speed of the train,
so your method/conversion amount is correct
