Which of the following explains how scientists know that current global warming is related to human activities? There wasn't carbon dioxide in the atmosphere in the past.
There was more methane in the atmosphere 6,000 years ago.
Increased carbon dioxide in the atmosphere is not carbon-14.
There is more water vapor in the atmosphere today than the past.

synapse nervous system

because photosynthesis could not occur (apex)

answer;

-phase iii

explanation;

phase three begins with the transition of a recovered individual to a phase three team of the appropriate service. this phase usually takes place at a military medical facility in the united states. one of the goals of phase three is family reunification.

i took a test for bio that had this question and these were the correct answers, not sure if this is any now lol

the nervous system and the muscular system work together.  

sweat reaches the surface of the skin and evaporates into the air.

muscles underneath the skin relax, causing hair on the skin to lay flat.