The food we eat contains chemical energy. Which statement BEST explains how this energy is released? a. Cells burn the food molecules which releases energy as heat which powers body
movements.
b. Chemical energy is directly released when eaten food is digested.
c. Cells remove and capture the energy in food molecules all at once, then store it for later
use.
d. Chemical bonds in food molecules are broken, releasing energy and allowing cells to use
the energy to make ATP.

Which would be an adaptation in a rainforest, but not in a tundra? a. ability to store water for a long time b. fur that blends in with snow c. strong claws for killing prey d. a beak that can dig into thick trees

Asolution of an enzyme and a substrate was placed in a water bath and the temperature of the reaction was raised gradually. the graph shown was plotted at the end of the experiment. what can be concluded from the graph? a) temperature has no effect on the activity of the enzyme. b) the effect of temperature on the enzyme is unpredictable. c) the enzyme shows increased activity up to a certain temperature. d) the activity of the enzyme is inversely proportional to the temperature.

Consider the classification levels of a human. eukarya ,animalia ,chordata ,mammalia ,primates, hominidae ,homo ,sapiens .which is the most specific taxonomic level in the classification system above? a sapiens b homo c hominidae d primates