Answer:
False
Explanation:
it can be used to date stuff up to about 50000 years, so i'd say that its halfly false, so false is correct :)
Answer:
4
Explanation:
How do (sensory) receptors send messages to the brain?
Via (sensory) neurons
Well If the Salmon die from lack of food from polution or something, and other animals benafit from the nutrience they carry. the rest of the ecosystem might parish, i hope that helped im not sure what was wanted