Arabidopsis thaliana is a small angiosperm related to mustard that is commonly used in plant research experiments. In one experiment, an antifreeze protein from a species of bacteria was inserted into the genome of Arabidopsis thaliana, and the plants were exposed to freezing temperatures. Plants without the antifreeze protein had 90% mortality, while those with the antifreeze protein only had 20% mortality. What was the dependent variable in this experiment?

the percent of the plants surviving

Explanation:

A dependent variable is the one which changes with change or variation in the independent variable.  

An independent variable is the one which is varied in an experiment to study its impact on other factors (dependent variables)

Here in this experiment, the factor which is varied is the antifreeze protein as i t is inserted into the genome of Arabidopsis thaliana to check whether they survive or not.  

Since the plants without antifreeze proteins have lower chances of survival as compared to plants with antifreeze protein.  

Hence, antifreeze protein is the independent variable and % of plants surviving is the dependent variable.

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."    

my teacher would say no s