There are three main types of rocks: sedimentary, igneous, and metamorphic that form the rock cycle. Hope this helps :)
Answer:
Paddle like swimmerets are used for movement by crustaceans.
Answer:
A smaller cell has fewer organelles dependent upon nutrient uptake and will acquire them more quickly.
Explanation:
the larger the cell the more distance matter must travel within the cell. if the cell was larger there would be a waste of space in the cell and it would take longer for proteins and enzymes to travel about the cell.
The answer is A.) Troposphere, Stratosphere, Mesosphere, Thermosphere