The graph shows atmospheric carbon dioxide levels over time, Atmospheric CO, Levels
(Mauna Loa Observatory)
Monthly values
Normalized values
Parts per million
380
360
340
320
1960 1970 1950 1990 2000 2010
Year
Graph and data copyright Scription of Oceanography,
NOAA Earth System Research Laboratory, December 2016
Which two observations are most useful for explaining the trends in the data? Select two answer choices
Photosynthesis and cellular respiration have opposite effects on carbon dioxide levels
Carbon is stored in solid form in shells rocks and sediments
Atmospheric carbon dioxide may dissolve in ocean water,
The burning of fossil fuels adics carbon dioxide to the atmosphere.
Activities that produce or take up carbon dioxide vary with the seasons

Which statement about the pancreas is not true? a. it is an endocrine organ in the abdomen. b. it release chemicals into the digestive system. c. it releases insulin to increase glucose levels. d. it release hormones into the bloodstream.

Benito is doing research on the effects of florida's elevation on its climate. his notes include the following: 1. the average elevation of florida is 30 m above sea level. 2. the highest point in florida is britton hill, which is 105 m above sea level. 3. the change in temperature from 0 m to 1,000 m is 7 °c. what can benito conclude about the effects of florida's elevation on its climate? a.) florida typically experiences cold temperatures and temperature changes within a narrow range. b.) florida typically experiences cold temperatures and temperature changes within a broad range. c.) florida typically experiences warm temperatures and temperature changes within a narrow range. d.) florida typically experiences warm temperatures and temperature changes within a broad range.

Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?