Which one of the following is a characteristic of a metal?
a. changes the color of litmus paper to red
b. conducts heat readily
c. reacts with bases to produce salts
d. becomes negative when combined with other elements

What does gradualism and punctuated equilibrium have in common

Iguanas need to live in a habitat that is very warm, so the pet store warms their enclosures with "basking lights" which act as an artificial sun. describe how the three methods of thermal energy transfer may take place within the iguana's enclosure.

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.