Barbara is a research scientist at an organic pest control company. Part of her job is to find foods that ants will eat so the foods can be used in ant baits.

Over the last month, Barbara performed an investigation in her lab involving 100 ant mounds. She began by placing equal amounts of corn meal and maple syrup on opposite sides of each mound. Each morning, she measured how much of each food the ants had taken. She then replaced the foods with fresh samples, and repeated the process every day.

Which of the following questions was Barbara most likely investigating?

Barbara investigating that which food the ants like the most in order to use this food for killing the ants and removes them from a specific area.

Explanation: Ants are insects which sometimes act as pest because it lives in holes in the house and act as a carrier of many harmful diseases so in order to control the spreading of the disease we have to control the population of ants.

one centimetre is equal to 0.01 metres

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."