During cold periods, marmots enter a state of torpor which alters their lower critical body temperature. in comparison to the body temperature of a bear during its long winter sleep, the temperature of the marmot drops and the duration of the torpor is the bears period of sleep.

Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c.ozone layer hole d.increase in sea levels

2. how does the miller-urey experiment fall short of demonstrating that life can arise from inorganic molecules? explain. a. it doesn't show a leap between a collection of amino acids and a single-celled organism. b. it recreates the conditions that existed at the earth's beginning, but no molecules form as a result. c. it doesn't provide evidence of the formation of amino acids. d. it doesn't show how multicellular organisms developed from unicellular organisms

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water