Your answer is B.
It's called an occluded front where the cold air meets the warm air underneath it. Hot air rises over cold air. :) Hope this helps you.
Fossils are the remains or impression of the dead animals and plants that lived in the past.
All life on Earth, at heart use a membrane that separates their organism from its environment. For it to stay alive, the organism takes in important materials for making energy, while also shuttling out toxic substances such as waste products. In this regard, water is essential simply because it's a liquid at Earth-like temperatures.
Hope this helped! :)
<span>Men can produce sperm throughout their adulthood because their reproductive organs and glands are fully developed. During their childhood and adolescence the glands and organs are not functional for reproductive purposes.</span>
<span>A protein called ATP synthase.</span>
