An element has a relative mass of 35.45. It has 2 known isotopes, A with a mass of 35 and B with a mass of 36. Which isotope is the more common in nature?
A isotope A
B isotope B
They are equally common.
Not enough information to determine.

The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production

What are some characteristics of a free enterprise economy?

Below, the levels of organization in a multicellular organism are shown from least to most complex. which level of organization can be described as several different types of tissues working together to perform a common task?