Answer:brain
Spinal cord
Explanation: the two make up the nervous system
That would be the R-value
CO2 VALUE was 278 which means it was 16.8 and 9
Answer:
Ecology is the study of how living organisms interact with each other and with their environment. Abiotic factors are the parts of the environment that have never been alive, while biotic factors are the parts of the environment that are alive, or were alive and then died
Explanation:
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