Scientists often use classification systems in order to 1.
extend their powers of observation
2.
organize their observations in a meaningful way
3.
make direct comparisons with standard units of measurement
4.
make more accurate interpretations

Asnail, elodea (aquatic plant), or both were added to the tubes and they were stoppered. tubes were placed under a grow light for 24 hours and the results recorded. the test tubes were then covered for 24 hours to produce a dark environment and the results recorded. which statement best explains the change in test tube d from the light setup to the dark setup.

What does all of the organ system in a human form

When is your respiration rate likely to change? a. when your intestines are digesting b. when your cells have too much glucose c. when your cells need more oxygen d. when your liver is working after a meal