It has an alternating chemical phosphate and sugar backbone, making the ‘sides’ of the ladder.
A keystone species helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether.
Answer:
High mass stars have very high-core temperatures, crushing stellar-core pressures, and are very big and very bright.
Explanation:
Answer:
magma upwelling and lateral expansion along the mid-Atlantic ridge
Explanation:
