During the growth of crystals astronauts study and perform this action while in the space stations. The astronauts freeze a certain liquid that turns into a solid. The solid form forms a certain pattern that is “special”. The materials that group together form the actual crystal.
<span>Aquatic organisms and the physical and chemical components of their environment are inseparably inter-related and interact with other. Flow and water chemistry are the primary factors governing life in riverine habitats, and both are closely related to seasonal variations.</span>
I would go with A, they inherited the wings even though they don't need them today, since evolution has changed the Ostrich in some way.
The chemical group is the methyl group (-CH3).
Lipids are liquid fats stored for later. Carbohydrates are energy being used for now
