Does caffeine really affect reaction time?
we did an experiment and there was no real change in reaction time when consuming caffeine and when people did not consume caffeine.
is this true or was our experiment inaccurate

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

Name the following: (a) category of pathogen that causes diseases, like common cold and mumps. (b) the microorganism that requires a host to produce.

How do you date a sample of rock that you suspect as being one of the earliest on earth