Many scientific discoveries have contributed to the explanation of how life began on Earth. Which of the following was NOT used to develop this scientific theory?
A)Louis Pasteur disproved spontaneous generation by showing that bacteria will not grow on
meat in a sterilized environment.
B)Oparin's "primordial soup" theory was tested by Miller and Urey by passing sparks through a
mixture of gases to represent lightning and within a week, several simple organic molecules
had formed.
C)Scientists supported Lynn Margulis' theory that eukaryotic organelles such
as mitochondria and chloroplasts originated as prokaryotes that lived inside other, larger
prokaryotic cells.
D)Darwin's argument that vestigial structures are evidence that evolution has occurred.

When water freezes, it . contracts expands

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.

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.