Answer:
element
Explanation:
we know that helium is a pure substance although helium atoms are sometimes mixed with their isotopes it is still the same element. since there is no other element combined with helium this makes it an element.
it will send the message through the axon
Baking soda
A
lies to the left of periodic table
A true
Bald eagles have white heads distinguishing them from the rest of their body(which is dark brown
