The first and second option
Answer:Beaches are always changing due to factors such as waves adding and eroding sand.
I’ll go with False? Mainly because I’m thinking that some genes may change in the body overtime. Like a mutation of the DNA that might change the cell(s).
Answer: premaxilla bone (or maxilla) and the maxillary beak (or rhinotheca).
Explanation:
The beak is composed of keratin, the same tough, insoluble protein found in fingernails, hoofs, antlers and horns. A bird's bill comprises two parts. The upper portion of a bird's bill is called the maxillary rostrum, which consists of the premaxilla bone (or maxilla) and the maxillary beak (or rhinotheca).
