A theory can be changed by current evidence.
As it is only a theory.
Theory : a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
Hope this helps,
Davinia.
Answer:
grrrrrrrrrrrrrrrrrrrrrr
Explanation:
shart
which is more likely to be the cause of down syndrome the egg or the sperm?
The egg
I think farm expenditures
