Answer:
Heriditary
Explanation:
Heriditary traits are genetic traits that get passed down.
21. B. recessive
22. D. DD and dd
23. D. FF and ff
It is mostly glass and fiber glass
C, scientists have recently developed impressive methods of helping sick sea lions is a statement of opinion since the writer thinks the methods are impressive while others may think otherwise. The other two choices are facts; it states things that the Marine Mammal Center has, such as staff.
