35 The weighted average of the masses of the isotopes of an element
а.
b.
mass number
isotope
C
d.
atomic number
atomic mass
12
Mass number
(#protons plus
#neutrons)
***
Atomic number
(#protons)
12.011 Atomic weight

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

What function does the limb sever in each animal? how are the limb bones of the four animals similar? based on these similarities what can be inferred about the evolution of the four animals.

Which best describes carbon dioxide’s path out of the body