Aggregate -unconsolidated pieces of rock (I.e sand and gravel)
Answer:
Vertebrates can be classified into five groups, based on their skin covering, how they reproduce, how they maintain body temperature, and characteristics of their limbs (arms and legs, or their equivalent such as wings or fins).
Explanation:
Hope This Helps!!
the Black Sea wascalled "inhospitable" before Greek colonization, because it was difficult to navigate, and because its shores were inhabited by savage tribes, and that the name was changed to "hospitable" after the Milesians had colonized, as it were making it part of the Greek civilization
The nucleolus disappears. Centrioles begin moving to opposite ends of the cell and fibers extend from the centromeres. Some fibers cross the cell to form the mitotic spindle. The nuclear membrane dissolves, marking the beginning of prometaphase.
