<span>Changing one amino acid in the protein hemoglobin causes sickle-cell anemia.</span>
The model of urban growth that views the city as a series of somewhat circular zones occurring outward from its center is called the Concentric zone model.
The term Robert Park used to explain the back and forth communications between members of a crowd during unrest was Circular reaction
Fossae are holes or depressions in the bones that are usually found on the end of the long bones. Fossae are good indications that a bone was connected or articulated with another bone. Therefore, if a scientist has found a fossa on a bone he or she could conclude that the bone was joined with another bone in the skeleton at the place of the found fossa.
Answer:
C- a duck catching and eating a snail
Explanation:
Biotic factors involve living things. The only choice with two living beings interacts would be C.
