Immune System is the system that consists of proteins and cells.
Volcanic eruptions, floods, landslides
B Prokaryotic organisms are always unicellular,but eukaryotic organisms are always multi
Answer:
D
Explanation:
The gradient in bed load is mostly made up mostly of gravels and sands, broken down versions of larger boulders and rocks, which are most commonly found in mountainous areas. Streams with low gradients cannot carry bed load down stream because it moves slowly and without much force. Gravels and sands couldn't move downstream because the water flow isn't strong enough to move them or to keep them in motion.
